If I were your boss I would make that order of two extra 2560x1600 displays as an appreciation of your hard work! Speaking of which;
$100+ extra just for NF200 is questionable, unless you're going for a third 6950 @5670x1080, and re-test @ 5760x1080, and reach a minimum of %180 scalability, then I take it back!
$100 extra for i7, for a gamer, is a waste. 2500K ftw.
$100 extra for SSDs in Raid is Pretty hardcore, meaning no value (for me at least.
$100 extra for BD-R: When the software comes out, I'll buy it.
I'd use 300 out of this $400 saving to invest in either a third 6950 if my first wish becomes reality, or, more realistically, noise dampening:
1) Gold Seasonic X-Series 850 PSU (more quite and efficient)
2) Silverstone Raven 2 Evolution case (equal air intake for both 6950s= less heat and fan noise from the top card)
3) Noctua NHC14 cooler. (minor decrease in performance, but anything stronger is overkill for sandy bridge as you mentioned, and a massive decrease in noise)
If I was your boss, I would also enter contestants living outside of the US, under the condition that they have a US address you can ship to