totals $807 + shipping. (w/ possible $45 back in rebates too)
things that are the same; cpu, case/ram combo, gfx card and inclusion of mw2.
the mobo is a bit "future-proof" w/ its support for sata 6gb/s and usb 3.0.
the 750w corsair would've been overkill for you, even if you're planning to run dual gfx cards. i found a real good deal with an xfx 650w psu (also a good psu brand) that will easily handle your rig with future upgrade with no problems.
the hdd included will perform a bit faster and has a longer 5yr warranty.