Stryker is the best currently but it's way overpriced for what you're getting. NV reference board (i.e. EVGA et al.) is a hit or miss - I know you mentioned you wouldn't mind a little effort, but I'm afraid the effort can be bigger than you expected, including multiple RMAs. I would only recommend it for determined and experienced users at this time. If you must SLI 2 x 8800 GTS, I would recommend ASUS 650i board. It's reported to have least amount of quirks, and the price is just right. But honestly an even better option would be getting a GTX and forget about SLI. By going with 650i/680i and 8800 SLI, you're trying out not one, but two of the new (i.e. not proven/polished) techs. 650i/680i has its share of problems, and the drivers for 8800 series don't look to be mature enough for SLI yet.