Mac OS X Version 10.4 requires a Macintosh with:
* PowerPC G3, G4, or G5 processor
* Built-in FireWire
* At least 256MB of physical RAM
* A built-in display or a display connected to an Apple-supplied video card supported by your computer
* At least 3.0 GB of available space on your hard drive; 4GB of disk space if you install XCode 2 developer tools
* DVD drive for installation (get CD media for $9.95)