The contest runs till May 1st and all needed is 5 corrected answers to enter the draw.
I would enter if the prices were refundable for cash.
If I win than I buy another GTX 480 to get faster set up than my HD 5970. I would also need to buy new mother board, most likely the ASUS ROG Rampage III Extreme so I can run the cards on PCI-E slot 1 and 3.
That's about $1000 upgrade that I actually don't need for my 1920X1080 monitor, but I love NVIDIA so much, so why not.
Anyway I did enter the contest and if I win I would do the upgrade.