Trips on the turn against a TAG and fish

[BrassMonkey]

Button is a very very aggressive TAG - about 25/20/2.8. UTG is a callbox fish.

Pre-flop is debateable - I don't really like raising ATo out of position with several people in the hand, and I think that's fine.

Flop - It seemed to me that betting out here was best, as a check through is a disaster - albeit unlikely - and I figured I was more likely to get a bunch of bets in by taking the least tricky approach, especially with the callbox trapped in the middle of me and the aggro TAG.

Turn - Wasn't sure quite what to do when raised here. There's another guy in the hand still, but do I figure to be best enough of the time to warrant a three bet?

PokerStars 3/6 Hold'em (5 handed) internettexasholdem.com

Preflop: Hero is BB with T[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/heart.gif[/img].
UTG calls, MP calls, <font color="#CC3333">Button raises</font>, <font color="#666666">1 fold</font>, Hero calls, UTG calls, MP calls.

Flop: (8.33 SB) T[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/spade.gif[/img], T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets</font>, UTG calls, MP folds, Button calls.

Turn: (5.66 BB) K[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, UTG calls, <font color="#CC3333">Button raises</font>