Just setting up a new system for myself and was hoping I could get a second (or third) pair of eyes to look it over. This is not my first system build, but it can't hurt to have a second opinion.
I am going to use this computer mainly for gaming and general computing tasks. I do have a 42 inch 1080p lcd tv that I am planning to use as a "second monitor" (I already have the cable) for when I want to watch/play something on the big screen. My main monitor runs at 1680x1050. Gaming with every setting at the max and 4x aa isn't a big deal to me (although I suspect this will be able to for alot of games).
I feel like I am being a little conservative with the 4870, but I don't really want to get a dual card setup and I don't think $400 on the gtx280 seems reasonable. The plan is to upgrade in about 2 years - a new video card, a new processor, and probably more ram. That is a large part of why I chose i7 over the core2quads.
I have never overclocked before, but I have been reading alot about it and am planning to give it a try.