AA - turn check??

I'm unsure about this, mainly because I hate the idea of giving a flush draw a freebie. Though his turn check was very suspicious, and his most likely holding, given his flop play, was at least trips. Thoughts?

Also unsure about the flop 3-bet call. I was planning on check-raising any safe turn card, but don't know if capping is the better alternative.

READ
Villain was well on his way to becoming a LAG - after 50 hands he was 41/8/4.2

Party Poker 2.00/4.00 Hold'em <font color="#0000FF">(10 handed)</font> link (http://www.darksun.lunarpages.com/poker/)

Preflop: Hero is UTG+1 with A/images/graemlins/heart.gif, A/images/graemlins/diamond.gif.
UTG calls, <font color="#CC3333">Hero raises</font>, <font color="#666666">5 folds</font>, Button calls, SB calls, <font color="#666666">1 folds</font>, UTG calls.

Flop: (9.00 SB) 9/images/graemlins/club.gif, J/images/graemlins/club.gif, 3/images/graemlins/diamond.gif <font color="#0000FF">(4 players)</font>
SB checks, <font color="#CC3333">UTG bets</font>, <font color="#CC3333">Hero raises</font>, Button folds, SB folds, <font color="#CC3333">UTG 3-bets</font>, Hero calls.

Turn: (7.50 BB) J/images/graemlins/spade.gif <font color="#0000FF">(2 players)</font>
UTG checks, Hero checks.

River: (7.50 BB) 6/images/graemlins/diamond.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG bets</font>, Hero calls.

Final Pot: 9.50 BB.

[TemetNosce]

Cap the flop. If he checks the turn, then you bet (no free cards). If check-raised on the turn, call down since he's a LAG.

[hobbsmann]

[ QUOTE ]
Cap the flop. If he checks the turn, then you bet (no free cards). If check-raised on the turn, call down since he's a LAG.

[/ QUOTE ]