1) OP worded post badly; would like everybody's input, not just e_dawg's. That includes LM, Tannin, etc.
2) Uda, OP is not interested in Rebel class bodies! It will be a 40D or D300. And where did I say that I wanted to spend only $650? And that I wanted only one lens? Huh?
E_D, I'd lean more...