I just upgraded to a new motherboard, since my last Asus one had compatibility/stability problems. Very happy with my Gigabyte board so far, though!
CPU: Q6600 @ 3.06Ghz
motherboard: Gigabyte EP45-UD3R
RAM: 4x2GB OCZ SLI DDR2800
Graphics: 8800GTX w/ accelero cooler
3x500GB WD hard drives
Pioneer DVD RW/etc etc
Scythe Ninja 2 HSF
Enermax Liberty 400
Antec P150 white case yay so pretty
Dual Samsung 205BW 20" LCD's
This isn't just my day-to-day, it also does my rendering and photo processing, etc. It's my everything computer.