Boot Camp lets you install Windows without moving your Mac data, though you will need to bring your own copy to the table, as Apple does not sell or support Microsoft Windows.(1) Boot Camp will burn a CD with all the required drivers for Windows so you don't have to scrounge around the Internet looking for them.

Once you’ve completed Boot Camp, simply hold down the option key (that’s the “alt” key for you longtime Windows users) at startup to choose between Mac OS X and Windows. After starting up, your Mac runs Windows natively just like a PC. Simply restart to come back to Mac.

See Apple's Boot Camp Public Beta page for more information.

New in this version:
Boot Camp 1.4 beta contains several updates and is intended for all new and previous Boot Camp beta users.

Boot Camp 1.4 beta includes:
- Support for keyboard backlighting (MacBook Pro only)
- Apple Remote pairing
- Updated graphics drivers
- Improved Boot Camp driver installer
- Improved international keyboard support
- Localization fixes
- Updated Windows Help for Boot Camp
- Updating to Boot Camp 1.4 beta

If you previously installed Boot Camp beta, you can easily update to Boot Camp 1.4 beta. You don't need to partition your hard drive again (unless you want to change its size) or reinstall your Macintosh and Windows software or documents, but it's very important to update the Boot Camp Assistant software, create a new Mac Drivers CD and install the updated software it contains onto Windows. Complete instructions are provided in the Installation and Setup Guide included with the Boot Camp 1.4 beta software.

Requirements:
-Mac OS X Tiger v10.4.6 or later (check Software Update)
-The latest Firmware updates (check Support Page)
-10GB free hard disk space
-An Intel-based Mac
-A blank recordable CD or DVD
-A printer for the instructions (You’ll want to print them before installing Windows, really.)
-A bona fide full version of Microsoft Windows: XP Home or Professional with Service Pack 2, WIndows Vista Home Basic, Home Premium, Business, or Ultimate. (No upgrade or multi-disc versions).