Thanks so far, but I think I clearly said I wanted to optimize a S&W fighter and not optimize a fighter by throwing away the character concept. I'd like to hear something about how I can make him effective while using a shield. I know that he would be stronger without, but I want him to use one.

Question: Shield Charge lets me make a free trip attempt with a shield while charging. Would it make Cometary Collision from PHBII worth the feat?

Doesn't someone know anything that adds damage or whatever against prone opponents?