Hillary's anti-video game stances are complete pandering. It's just her throwing a bone to cultural conservatives while trying to establish a moderate overall stance. She blows a lot of smoke, but nothing will happen. Joe Lieberman, another hard-ass on this subject, has been going on about this for at least a decade and all that ever happened from it was the ESRB ratings. It's all bark and no bite, trust me on that.
As for her as President, she is qualified and she is very smart, but I don't see her winning the general election. John McCain or Rudy Guliani would destroy her. Her problem is that she's just so fake...so obviously calculating. Likeability shouldn't really be a factor in who becomes President, but in reality it is. No escaping that. Personally, I think Bill Richardson is the ideal candidate, but he's very much an underdog at the moment.
I also am a bit worried about this sort of dynasty politics. If she wins, the last four presidents will have been Bush, Clinton, Bush, Clinton. We just need a new voice in charge. Still, if she wins the primary and gets the nomination, I'll support her. You won't see me voting Republican for a long time after all the shit they've pulled.