I can imagine the P4 if you are really forward looking with your applications......but a TNT2?? Common'!
My dream machine:
3 * 17" LCD screens
PCI Matrox G400MAX w/dualhead to drive 2 LCD screens
Geforce Ultra (who cares what brand) for one LCD screen
ABIT KT7A-RAID
Athlon 1.2ghz (overclock it of course)
768Mb PC 150 2-2-2 DRAM (no, PC 150 isn't an industry standard, but there are DRAMS' tested for that speed).
4 * SEAGATE Barracuda, 181.6 GB, Ultra160 SCSI, 7200 RPM, 7.4 ms in RAID 1+0 (or 0 + 1......depends on my controller I guess) format (speed and data reduncy is good

)
Adaptec 3400S, quad channel Ultra160 LVD SCSI-3 RAID card
Sound Blaster Live! Platinum PCI
Klipsch V.2 -400 Promedia Speaker System
Cordless iTouch Keyboard
3com Ethernet card
Microsoft Intellimouse Explorer
Maybe some other crap too.