I would love, more than anything, to do an out-and-out farce with huge physical energy. Just because you're from the minimalist school, it doesn't mean you can't go big.
You should learn to be happy with what you have. Besides, the fact that I'm not a huge star has allowed me to pick and choose the roles I want to do, not the ones some person sitting in a studio office thinks I should do.
My thing about looking good is that it should be the character. If I'm playing a character who's concerned about his body - an athlete, say - I'll get in shape. If I'm playing a character who doesn't or wouldn't, I don't. I almost never get in shape for a movie, even though I know it would be a good career move.