Get the i7 920 if you do a lot of 3d stuff or video-editing/encoding. That's where the i7's and many Core 2 Quads shine over AMD.

In gaming, it's more and more the video card. I wanted a 5850. But, every store was sold out. So, I settled for the lower power draw 5770.

My full pc upgrade cycle is also coming up sometime next year. That means an all new pc. I definitely will move up to i7 or even the i9 (6-core).