Wow! What a machine I could build with a $2100 shopping spree on Newegg.com! LOL!
You could build an 8 core (dual 4core procs) ,16GB RAM, etc monster that could run Windoze, Linux, Hackintosh, and about any other app you could think of!
Actually you can go to IBUYpower.com and make an intel i7 6 core (12 total threads) for about that much with a nice case.
use a gigabyte MOBO with the efix bios adapter, intall win7, MacOS snow leopard, and unbutu each on separate drives (500 gig hd's are $50 usd)
Get the new Amiga forever and a 6pack of coronas and enjoy a sunday afternoon. or rainy day...