I'm going to say what most other people have said, that CPU could be wasted. Go for the 930 or 940 or whatever's current in the midrange. 850W PS is nuts, my PC uses 200W when it's going full speed on all drives and cores.
SSD get something Sandforce based, just use it for US, programs, and cache. 80GB is heaps. Try these
. The Onyx 2 is meant to be great, and great value (I think I got that name right). Get a couple of WD black drives for data.
Ram can be easily upgraded. Video cards can be easily upgraded. Doing a Hacintosh isn't meant to be too hard these days, if you buy the right parts.
You can probably spend 30% less and get similar performance (guess). Spend that 30% on upgrades in 2 years and i'll jump another 50% in speed.