Huge pot, what is my turn action?

[Hallett]

Sorry, live game so no converter. 6/12, very loose, somewhat aggressive. I have reads on all players.

Hero is in the C/O with 7 [img]/images/graemlins/heart.gif[/img] 7 [img]/images/graemlins/club.gif[/img].

UTG Limps, UTG+1 (Loose, aggressive when he has a good hand, passive otherwise) limps, UTG+2 limps, MP1 limps, MP2 (LAG) <font color="red"> raises </font> Hero calls, button ( (young, LAG, hat on sideways)<font color="red">3-bets </font> SB (TAG) folds, BB folds, all limpers call to Hero, who <font color="red">caps </font>.

Flop is T [img]/images/graemlins/diamond.gif[/img] 7 [img]/images/graemlins/diamond.gif[/img] 2 [img]/images/graemlins/heart.gif[/img]

UTG checks, UTG+1 bets (I know how he plays, he very likely has a T, if he had a diamond draw, he would check-raise). Called to MP2 who <font color="red"> raises </font>. Hero <font color="red"> 3-bets </font> button <font color="red">caps </font>. UTG+1, MP2, and Hero all call, everyone else abandons ship.

Turn is 4 [img]/images/graemlins/club.gif[/img]
Checked through to Hero, who <font color="red"> bets </font>, buttton <font color="red"> raises </font> UTG+1 calls, MP2 folds, Hero........calls [img]/images/graemlins/blush.gif[/img] .

River T [img]/images/graemlins/spade.gif[/img]

UTG+1 bets, Hero....thinks very quickly... <font color="red"> raises </font> button folds, UTG+1 calls.

I show my house, and it is good. In overheard conversation, UTG+1 had a T, and button had 8 [img]/images/graemlins/diamond.gif[/img]9 [img]/images/graemlins/diamond.gif[/img], for a flopped open ended straight-flush draw.

Thoughts on the hand, particularly the turn are welcome. Do I three-bet?