I have the original dual 1.8 (8 slots, PCI-X) with the 9600 (64mb), 1gb ram, 160 and 200gb HDs, 8x superdrive, AirPort Extreme, Bluetooth 10.4.1 and a 20" aluminum cinema display. All I can say is that this has probably been my favorite mac to date. My only gripe is:
The number of HD slots, two isn't enough for me, and I dislike external drives. I didn't want my CD and DVD collections getting stolen at college, so I ripped all my CDs into iTunes (89gb) and all of my DVDs together amount to over 300gb (encoded into 1gb files) So half of my files are on an external drive, and the rest are on my 200gb secondary drive. I really wish Apple had designed the case to fit more HDs, rather than having to shell out $89 for an attachment and then another $89 for a SATA card. My old Quicksilver had 4 bays, and 5 if you count the zip. But I suppose that is the trade off, because my G5 is ultra quiet.