After analyzing more reviews/benchmarks (I just realized you can select your reso on the anandtech article..duh), I'm leaning towards the Gigabyte 285 you recommended. Immediatly, it underperforms by about 5% across the board from what I can see from the X2, but the addition of another 285 (maybe in 6 months?) would keep my system solidly rocking for another year after that I feel. Whereas with the 4850X2 purchase, I'll have to bump up to a $400 card in 6 months to get that performance, so I guess it would save me money on the backend (by spending an extra $30 now) and keep me going longer.
Any flaws to my logic? It's 4:30am 😛