Just buy it for the nice hardware then
and toss [link|http://www.yellowdoglinux.com/|Linux] on it. Can even get it [link|http://www.terrasoftsolutions.com/products/apple/|pre installed] if you like.
When you purchase an Apple computer from Terra Soft, it will ship with the most current version of Yellow Dog Linux pre-installed. Mac OS X is also pre-installed and may be accessed by holding the OPTION key at boot.
Checking their prices, it doesn't look like they charge extra for installing Linux for you.
Darrell Spice, Jr. [link|http://spiceware.org/gallery/ArtisticOverpass|Artistic Overpass]\n[link|http://www.spiceware.org/|SpiceWare] - We don't do Windows, it's too much of a chore