Playing a set Early in a multiway pot

[WCGRider]

I wanted to extract value here but was also worried about a better hand, how do you play this hand?

PokerStars No-Limit Hold'em Tourney, Big Blind is t30 (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP3 (t3860)
CO (t4105)
Button (t1110)
SB (t3020)
BB (t1435)
UTG (t3830)
UTG+1 (t4385)
MP1 (t875)
Hero (t5100)

Preflop: Hero is MP2 with 3[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/spade.gif[/img].
<font color="#666666">2 folds</font>, MP1 calls t30, Hero|MPB calls t30, MP3 calls t30, CO calls t30, <font color="#666666">2 folds</font>, BB checks.

Flop: (t165) Q[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(5 players)</font>
BB checks, MP1 checks, Hero|MPB checks, MP3 checks, <font color="#CC3333">CO bets t90</font>, BB folds, MP1 calls t90, Hero|MPB calls t90, MP3 folds.

Turn: (t435) 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">MP1 bets t30</font>, Hero|MPB calls t30, <font color="#CC3333">CO raises to t270</font>, MP1 folds, <font color="#CC3333">Hero|MPB raises to t630</font>, <font color="#CC3333">CO raises to t3985</font>, Hero|MPB calls t3385.

River: (t8435) T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>

Final Pot: t8435