good laydown?

[DCM]

Party 2-4, I am utg+1 with A /images/graemlins/heart.gif A /images/graemlins/spade.gif I open raise, one player in mp calls, BB calls. Flop is 779 rainbow. BB bets I raise mp folds, BB reraises, I call. Turn is an 8 BB bets I think and then fold. I cannot tell if this was a great play or a terrible play.

[Yeknom58]

Unless the turn is a 9 not knowing this guy I'm calling this one down. He could be playing this way with 10-10 or J-J or A-9. He also could be one of those guys who won't re-raise pre-flop with K-K, Q-Q. I'm not totally convinced he has a 7.