Was downloading my latest video drivers and came across this:

http://www.evga.com/articles/00532/

Same as the TF2 contest where you go play in one of their servers that are listed for xx minutes (so that you register in their HLStats) and it automatically enters you for a chance to win prizes.

Prizes include:
EVGA GTX 275 CO-OP PhysX - $350
EVGA P55 FTW Motherboard - $229
EVGA P55 Motherboard - $200
Intel Core i7 930 CPU - $299
Intel Core i7 920 CPU - $299
3x Cooler Master Sniper Case - $150
3x Cooler Master Sentinal Mouse - $70
3x Cooler Master Storm gaming pad - $16