[MrTop]

I think that you played this hand fine, however I don't see how the 10 helps him. For that 10 to improve his hand to a straight, he would have to be holding K or 9, Either way, would he have called a $20 turn bet on a 4 outer? If he had 9 10, he more than likely would have raised you on the turn. My gut tells me that he was on a flush draw. If he had a set or two pair with 2 suited cards showing on the flop, I think that he would have raised. I'm also assuming that the villian has half of a brain in his head.