-G4/800 (preferably with 2MB of L3 cache)
-2GB RAM
-Radeon9700PRO (AIW model with firewire when it appears)
-SB Audigy (with firewire)
-PCI-A1200 bridge
-one slot free for SCSI RAID system or something
+ the usual bunch of stuff (a few 60GB 7200rpm IDE drives in SW RAID configuration, DVD drive, CD-RW, Antec tower case, 3D sound system, dual LCD monitors, etc...)
(I do not plan any use for the fourth PCI slot untill it is clear how well it works with the 2xAGP slot)