bioshock shader model?

Is it going to require sm 3.0 or 2.0?

i noticed the requirements have the ati 1300 as the minimum, but the geforce 6600 also and i wasnt sure if 6600 had sm 3.0 or not.

i have a x850 and overclocked the thing is just wonderfull... i play anything i throw at it. bf2.. call of juarez.. anything.

its good to see that i atleast can get my hands on Crysis since it only requires sm 2.0