[aejones]

How about this.

You smooth called preflop, so AA, KK, and AK are probably not a huge part of your range (also, smooth call with many to act. Maybe a sweet play if you know someone loves to squeeze, but risky if not). Anyways, he probably thinks that you are betting 555 on this flop very often. A turned set is very deceptive, IMO. In this case, it's very very hard for villian to put you on a hand that can call a push (I'm assuming that he thinks he can fold most two pair hands here). I think he'll turn up AQcc, KQcc, QJcc, AK or weaker two pair enough for you to call here. That is my argument for calling.