10/20 PL...define his hand on the turn?

[AZK]

Greektown 10/20 PL. I've been playing for several hours and have about 2800...I've only shown down nut hands in big pots, and shown down less stellar holdings in small pots. A bunch of people leave so it's now 5 handed. Game has become extremely aggressive, we haven't seen a non-raised flop in about 2 orbits, I've been giving up my blinds with ease, but have trapped numerous overly aggressive players with TP type hands by just getting to showdown as cheap as possible, most people give up after the flop. No limping basically. Villian (young kid kenny for the regulars) has respect for me as I've busted him a few times in the past, I have respect for him as he is a very good player, but I can outplay him postflop at times.

Anyway, 5 handed, 1 limp, Villian (has me covered) raises to 80, folded to me in the SB, I call with AQo (black), everyone gets out of the way.

He is not tricky, so this raise is AA - 88, AKs - ATs, AKo - AJo, KQs-KJs, KQo etc...around there. He will auto-bet any flop when checked to if he raised preflop. He sometimes fires on the turn. At the slightest bit of aggression he backs off unless he has the goods. The last few pots we've been in when I've check-raised or raised his bets he's folded. I'm waiting for him to make a play at me since I've been doing it too frequently. I took this line, but I probably should have done something different on the turn? What do you think?

Flop ($~180ish) Q [img]/images/graemlins/diamond.gif[/img] 9 [img]/images/graemlins/diamond.gif[/img] 7 [img]/images/graemlins/spade.gif[/img]

I check, he bets $150, I call.

Turn ($480) 7 [img]/images/graemlins/club.gif[/img]

I check, he bets $300, I call.

River ($1180) brick

I bet $500...

The bets seem strong, but at the time I really thought he was getting stubborn/frustrated from the way things were going and I think he would play JJ/TT this way too. I really want a showdown but I don't want to have to call >$500 on the river, which he will make. So my lead was part value, part blocking...Should I have done something on the turn since it's a great card for my hand? Keep in mind at that point if I check-raise it's a very large part of my stack at the same time, villain is not likely to give me credit for a reasonable holding as I've been raising/check-raising him a lot...