what are YOUR main system(s)

[mrweasel]

Main rig:
Mac Pro 2.66
7300GT card for now
20.1" LCD

Gaming box:
D805
1GB DDR2 667
74GB Raptor
7900GT
19" LCD

iMac (used at work -- hey won't buy me one ):
20" G5 2.0
2GB DDR400

Laptop:
MacBook 2.0 Core Duo
1.25GB DDR2 667

collecting dust:
Dell D600(1.86GHz)
Powerbook Ti667
many, many iPods

[Snoopy]

I have my same old beater (a couple of minor changes)

2x Athlon MP Barton's 2800+ (2.133ghz)

2gb ECC Registered RAM Mushkin high performance

Tyan Tiger S2460 (AMD 760MP chipset)

GF4 TI 4800 Ultra Pro 128mb Video Card

2x 19" LCD's (I had 3 but one died and I haven't found a matching one yet to replace it)

2x WD SATA Raptors (RAID'ed)

2x WD SATA 180gb (RAID'ed)

1x WD 160gb ATA133 (Standalone backup drive)

40gb Apricorn mini USB external drive (1/2 sized laptop drive, it's about the size of a floppy and 1/2 inch thick)

Promise Fasttrak S150 TX4 SATA RAID card

Promise Fasttrak Ultra 133 TX2 IDE RAID

Goofy ancient Turtle Beach Santa Cruz Audio card

Intel server Advanced Management NIC

5.1 Dolby surround THX speakers

DVD+/- R/RW

DVD-ROM

Antec 650w True Power PSU

All stuffed into a spiffy mid ATX case that I customized myself.

I have a few other systems lying around too but this is my work vehicle.