help and Recomendation
 

I am 100% new to this whole thing and have a general idea of what needs to be done to get Mac OS X installed but when I go to install a distro i get the "no symbol. Can anyone tell me which distro if any works with a stock, except for the video card, HP Pavilion a6700y. The video card is a NVidia 9400 GT. I would really appreciate anyones help.