Those were the days when processors didn't even need cooling, because they were so low powered.

*Rounds up specs*

Laptop - Dell XPS m1530
Core 2 Duo 1.83GHz (dual core)
Intel 965 chipset
4GB DDR2-667
NVIDIA GeForce 8400GS-Mobile
320GB hard drive
Integrated audio
1280x800 glossy
Fingerprint reader
Integrated Webcam/Microphone (3200x2400 max photo, 1600x1200 max video)
Slot-loading DVD burner

Desktop - Custom Built
Core 2 Quad Q6600 @ 3.2GHz (stock 2.4GHz)
Intel P35 chipset
8GB DDR2-800
NVIDIA GeForce 9800GX2 (primary)
NVIDIA GeForce 7900GTX (secondary)
Western Digital VelociRaptor 300
2x WD Caviar Blue 750GB
1x WD Caviar PATA 120GB (backups)
1x WD Caviar GreenPower 2TB
Creative X-Fi XtremeMusic
PC Power and Cooling 850SSI PSU (80+)
2x22" 1680x1050 Acer monitors
DVD Burner

Whole thing weighs 75LBS. If I get a job this thing's getting overhauled (again).

Hmm, surprised nobody made this thread before. Including me :P

Main desktop:
Phenom X4 965 Black Edition
GTX 285
ASUS M4A79T Deluxe
4GB Corsair Dominator
Corsair TX650W
1.5TB and 500GB Seagate Barracudas
Antec 902

It's my baby :)

Old desktop:
Athlon 64 4200+
...to my eternal failure, I've forgotten the mobo and this PC is currently at my parents' house so can't check :S
8800GTS
2GB Corsair XMS
Seasonic S12-600
Load of hard drives of various sizes between 80 and 250 :P

Laptop:
Some Intel chip, no idea what.
Some ATi graphics, same :P (performance wise, can run TF2, can just about do L4D... really no good for anything graphically better :P )
3GB memory
250GB HDD