AQ UTG, big pot--Last hand of night

[pheasant tail (no 18)]

hand takes place in a 3-5 live 5-500 spread limit game ($200 max buy-in). villain is button w/ around $1100 and I have him covered. He has just been hammering at pots w/ garbage, swiping blinds and limps w/ $40 raises and showing 84o. He is well aware of position and the quality of his opponents, making big calls against weakies w/ TP-no kicker. He showed a huge laydowns against a good player (AQ on A flop against a c/r in a $150 pot) and complimented himself for 15 mins. He has also folded to several re-raises PF when shown real resistance. And he has shown to be quite buzzed since last call was given. His ride is about to leave so it is his last hand and as he reaches to see his cards, he says "I'm probably I'm gonna raise this one"....

He raises to $30, I make it $90 w/ AQo, assuming that he is to get out of pot, he tanks for a while and makes it $200 flat, I call.

Flop: A79, I check, he bets $300, I raise the maximum ($500)which almost puts him all-in.

All comments welcome.

Thanks, PT