Extracting the Maximum with Trip Aces

[Moozh]

A hand I played yesterday... I feel my play has become timid as of late and I'm costing myself value at times. Villian seems a little loose passive, but not horribly so. When he bet into me on the turn, I took a specific line for a specific reason, but I'm not sure it was the right one. I'd be curious to know how other people would handle the situation and what their plans are for the rest of the hand.

Party Poker 3/6 Hold'em (6 max, 3 handed) converter

Preflop: Hero is Button with 9[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/spade.gif[/img].
<font color="#CC3333">Hero raises</font>, SB calls, BB calls.

Flop: (6 SB) 7[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">BB bets</font>, <font color="#CC3333">Hero raises</font>, SB folds, BB calls.

Turn: (5 BB) A[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets</font>...