i think they should, and they should have 20 different moves becaus of all the keys on a Keyboard.

                   My rig:

                     *Nvidia geforce 8800 gts

                     *1gb. of corsair memory

                     *dual hard drives, 400gb. of free space

                     *Amd athalon fx60 dual core processer

I think the PS3 version will look better in terms of graphics and audio. Just because i have a ps3:D