I bit on the i7 920 D0 at @$200 at Microcenter four months ago. Been very happy with my new rig ever since. Well, I was with my 4400+ X2, but now I'm 4x as happy 😛.
I was just telling a friend this on the phone "happiness isn't proportional to how fast your cpu runs" when I saw your post. coincidence? 🙂