Found this benchmark online. Check it out, looks promising. Proposed retail price at $249 and $299 for 1 gig model (will have to find where I saw this). Will be nice to have a few more come out, so we can compare how things look overall.
Looks like a pretty solid card, although I'd like to see overclocking capabilities tested on it as well, as the 8800GTS has the potential to go way, way faster than stock (although not permanently stable at that rate, I've gotten my GTS to run for a few hours at 675/1150, then needing about twenty minutes or so at stock speeds to cool down. Runs stable at 645/1100, though).
But, at the $270 the card is selling for on Newegg (for the 512MB version), it's really, really hard to say anything bad about this card.
I have read the review very carefully trying to figure out if this card is a better buy than the 8800 GTS 320 MB or not. The Pro does a bit better in most games (good), it's a bit hotter and consumes a bit more (bad, but don't really care, TBH). However, it's noisier, 72 dB as opposed to 62 dB for the GTS. A 10 dB difference is perceived by the human ear as double the noise. I think I'd rather get the GTS after all. Still, an excellent card and I'm glad to see AMD/ATI back in the competition