B & W Powermac g3's have a pci slot (the closest one to you when the side panel is flipped down) That is a custom 66mhtz pci slot, which is the same speed as agp, unfortounatly it is not recognized as an agp glot, but it is just as fast as an agp slot like i said.
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Mobile-2.2Ghtz Core 2 Macbook, 4GB ram, 160GB HDD
Server-Dual 1.42 MDD G4, 1GB ram, 4 random hard drives.
PC-C2D 2.4Ghtz, Asus Commando, 2Gb ram, 3 hdd's in raid 5, 8800GTS.