schwza,
what other hands do you put BB on in this situation? He checked PF from BB with several limpers - pretty much eliminating premium pairs. He then smooth-called SB miniraise on flop, and miniraised himself after my raise and MP2's call.

What other hands besides 64 (or 77, 33) does he play this way?
Keeping in mind that in general players in the stars 50r post-rebuy period are pretty solid.