Better late than never... just got my XFX GTX260 Black edition yesterday for $180 with MIR
Upgraded from a eVGA GTS8800 640Mb. My case being an Antec Solo I had to cut the drive bay with a metal saw to make the new card fit but no too big a deal.
I checked other models (higher one) but the XFX was so cheap now, I decided to go for that one as the nv300 won't be out this year and 275, 285 and 295 don't seem to be worth the money.
So far, I love it. I made my PC a silent one and this card is dead silent at 40% fan speed (idle or desktop) and using Rivatuner to control the fan/temperature. Playing WoW few hours never got me above 60% fan (audible, but not much) and I am playing 1920x1200 at 8AA 16Ani all options maxed. Fully stable.
Almost an overkill for WoW except that I like to play with all options maxed out