8800GT 512 SLI good enough for SOW?

[ARGH]

i may be asking too much but would love to know (if someone knows...maybe a dev?) what kind of GPU power we are looking at for at least a 30 fps experience on high graphical settings with a quad core cpu. my sli gpu setup is equivalent to a GTX 260 so i am praying that is enough power for all the eye candy.

from the pictures and information i read about this game i know it is multi-threaded but don't know if it will only utilize dual cores or more than this. the pictures look on par with wings of prey and i can run that game quite well.

if anyone knows the details a reply would be appreciated.