Re: AMD vs Intel... Buying new CPU
5000+ Black Edition
and whatever GPU and Case you wish to get.
Edit: Ssc, there are boards for AMD that have SLi (Infact, I am staring at one right now, my MSI K9N Diamond has 2 PCI-e slots, and comes with the SLi Bridge. It is also upgradable to the new AM2+ Phenom, requiring only a bios flash & update.)
P4 2.4GHz, 1.5Gb, 40Gb.
PowerBook G4 867MHz, 1Gb, 60Gb.