OK, so I was thinking monk or maybe a multiclass between fighter and monk. But then, I realized that with what is basically a combat-oriented character, maybe I'd just go with straight fighter class and make him specialized in unarmed combat. All those feats are hard to pass up.

Anyway, I've listed some feats that might be worthwhile, but as I don't have any of my gaming books at work, I've limited myself to the SRD:
Suggested Feats from the SRD:
Improved Unarmed Strike
Improved Bull Rush
Improved Grapple
Improved Overrun
Power Attack
Combat Expertise
Improved Trip
Stunning Fist
Other useful feats from the SRD:
Diehard
Dodge/Mobility
Weapon Focus/Greater Weapon Focus
Improved Initiative
I have tons of books, so I'm still open to feat suggestions, I just can't look anything up right now.
As for race, I was thinking dwarf, human or half-giant.
Thoughts?