If you're one of the many who has decided to build your own personal computer system, you know that doing so can be quite a challenge. The information can be overwhelming--and so can the number of choices.

It's true, whether you're perusing online sites, or wandering the aisles of your favorite retail store, shopping for PC components is no easy task. Until now. Thanks to "PC Hardware Buyer's Guide," the experience of building your own PC system has never been easier.

This handy pocket guide is the ideal shopping companion for do-it-yourself types. Loaded with valuable information, it starts off by providing a piece-by-piece overview of all the components that comprise a standard desktop computer. Then it sinks its teeth into the crux of the issue: how to choose the right parts for you, based on your particular profile (gamer, mainstream user, etc.). It does so by helping you identify which parts are:

Compatible to each other

Regarded as the best performing

Closest in line with your budget

For quick-lookup purposes, the "PC Hardware Buyer's Guide" even includes a simple reference chart with recommended brands and models. Just refer to the chart and the guesswork is gone. And don't worry about the shelf-life of the information, either. The "PC Hardware Buyer's Guide" features several rules of thumb for choosing components that endure past the latest models, so you don't need to buy a new guide with each passing year.

In a market where very little written information exists, this is the only pocket guide that covers PC hardware.

Why use the traditional approach to study the stars when you can turn computers, handheld devices, and telescopes into out-of-this-world stargazing tools? Whether you're a first timer or an advanced hobbyist, you'll find Astronomy Hacks both useful and fun. From upgrading your optical finder to photographing stars, this book is the perfect cosmic companion.

This handy field guide covers the basics of observing, and what you need to know about tweaking, tuning, adjusting, and tricking out a 'scope. Expect priceless tips and tools for using a Dobsonian Telescope, the large-aperture telescope you can inexpensively build in your garage. Get advice on protocols involved with using electronics including in dark places without ruining the party.

"Astronomy Hacks" begins the space exploration by getting you set up with the right equipment for observing and admiring the stars in an urban setting. Along for the trip are first rate tips for making most of observations. The hacks show you how to:

Dark-Adapt Your Notebook Computer

Choose the Best Binocular

Clean Your Eyepieces and Lenses Safely

Upgrade Your Optical Finder

Photograph the Stars with Basic Equipment

The O'Reilly Hacks series has reclaimed the term "hacking" to mean innovating, unearthing, and creating shortcuts, gizmos, and gears. With these hacks, you don't dream it-you do it--and "Astronomy Hacks" brings space dreams to life. The book is essential for anyone who wants to get the most out of an evening under the stars and have memorable celestial adventures.

A longtime favorite among PC users, the third edition of the book now contains useful information for people running either Windows or Linux operating systems. Written for novices and seasoned professionals alike, the book is packed with useful and unbiased information. In addition to coverage of the fundamentals and general tips about working on PCs, the book includes chapters focusing on motherboards, processors, memory, floppies, hard drives, optical drives, tape devices, video devices, input devices, audio components, communications, power supplies, and maintenance.

With the advent of inexpensive, high-power telescopes priced at under $250, amateur astronomy is now within the reach of anyone, and this is the ideal book to get you started. "The Illustrated Guide to Astronomical Wonders" offers you a guide to the equipment you need, and shows you how and where to find hundreds of spectacular objects in the deep sky - double and multiple stars as well as spectacular star clusters, nebulae, and galaxies. You get a solid grounding in the fundamental concepts and terminology of astronomy, and specific advice about choosing, buying, using, and maintaining the equipment required for observing."The Illustrated Guide to Astronomical Wonders" is designed to be used in the field under the special red-colored lighting used by astronomers, and includes recommended observing targets for beginners and intermediate observers alike. You get detailed start charts and specific information about the best celestial objects. The objects in this book were chosen to help you meet the requirements for several lists of objects compiled by The Astronomical League or the Royal Astronomical Society of Canada: Messier Club; Binocular Messier Club; Urban Observing Club; Deep Sky Binocular Club; Double Star Club; and, RASC Finest NGC List.Completing the list for a particular observing club entitles anyone who is a member of the Astronomical League or RASC to an award, which includes a certificate and, in some cases, a lapel pin. This book is perfect for amateur astronomers, students, teachers, or anyone who is ready to dive into this rewarding hobby. Who knows? You might even find a new object, like amateur astronomer Jay McNeil. On a clear cold night in January 2004, he spotted a previously undiscovered celestial object near Orion, now called McNeil's Nebula. Discover what awaits you in the night sky with "The Illustrated Guide to Astronomical Wonders."

Build a PC that will outperform any brand-name box on the market

Yes, even if you're not a total geek you can build your own PC -- and we guarantee it's worth the effort. You'll discover that the quality is better and the cost is much lower than any comparable off-the-shelf PC you can buy. Design the custom computer you want, and have fun doing it. Get high-quality PC hardware from local stores and online vendors Plan your computer project with a complete checklist Create the ideal PC that will run Windows 7 or Linux Take advantage of the latest multi-core CPUs Assemble, test, and configure your PC with ease Build a PC that meets your needs and fits your budget

Written by hardware experts, this book delivers complete instructions for building your own dream machine with high-quality components, whether it's a PC for general use, extreme gaming, a media center, or home server. Straightforward language, clear directions, and easy-to-follow illustrations make this guide a breeze for computer builders of any skill level, even those with no experience.

"Building the Perfect PC" presents six in-depth custom PC projects: Mainstream PC -- Fast, flexible, quiet, and reliable at a reasonable price Extreme System -- A wicked fast PC for video editing, gaming, and more Media Center -- One PC to replace your TiVo, game console, DVD, and CD player Home Server -- Ideal home network hub to store, share, and secure data Appliance PC -- A tiny, quiet, inexpensive PC you can put anywhere Budget System -- Reliable and highly functional at a low, low price