$200 + $10 shipping anywhere in the USA for this GTX 280. It wasn't abused, and it was run in a very clean operating environment. This is out of my work computer and it handled everything I threw at it like a champ. I don't have a heat score, but my Ebay id is ibankcoin (700, 100% pos...
I am using the dark knight on a 1366 asus P6T with no issues. The backplate that comes with it can be used on socket 1366 or 755 systems. The non dark-knight version does not have the backplate, but it does fit a 1366 board.
Whoops, I didn't notice that you were in SLI. I would sell the other 8800 ultra and put the money towards a GTX 275. Your board will run two GTX 275's in SLI, which will kick ass.
From the looks of it, you can sell one of your 8800 Ultras for ~ $150 - $175 on hardforums/Ebay. Two GTX...
It's actually a huge upgrade. Check out the toms hardware chart...
http://www.tomshardware.com/charts/gaming-graphics-cards-charts-2009-high-quality/Sum-of-FPS-Benchmarks-Totals,1469.html
1142.9 - 8800 gt ultra
vs
1708.10 - GTX 275
49% increase
Your 680i will run the GTX 275...
I don't think AMD will survive the recession.
Here are a few articles of interest:
1st up, Marketwatch from last week...
http://www.marketwatch.com/story/does-amd-really-pose-a-risk-for-bankruptcy-2009-09-29
Next, see #8...
I went with the Xigmatek dark knight after doing a TON of research, and I am VERY happy. The kit is high quality, right down to the mounting bracket, and it comes with a super quiet 120mm fan. I am running my i7 920 at 4.0 GHz on a P6T vanilla board, and handled prime 95 with flying colors...