My PC is at home and oh how I miss it. With me out of town I have my Dell Inspiron Laptop.
I did just build a computer at work for our graphics guy though...

Generic case with 4 fans
550w PSU
ASUS Mobo
AMD Athlon 64 X2 4400 (Yes, this bad boy is dual core)
2x WD Raptor 74g 10k RPM SATA Raided
GForce 6800 Ultra PCIE 256 (Drool) Its still on the way so for now were using a Matrox Dual output card
4x 512 Corsair DDR 3200 (2 gigs baby)

Running stock cooling components right now. Depending on how it handles I might end up building a water cooling kit for it.

Now if I could only call it my own.