Thanks for the comments, and yes I do tend to underestimate my opponents. While villian's turn play "may" be okay, I think his preflop and flop play were clearly bad. Again I suppose it depends on villians read of hero, but how many outs does he have on the flop? Is 12-1 with 2 weak overcards and a backdoor str8 draw against a preflop raiser good enough for a call here? I wouldn't do it unless I was sure that my opponent was very weak-tight. Even then there are still other players in the hand, calling with something.