$27: Top set in unraised pot

[Emperor Norton]

PokerStars Tournament, Big Blind is t30 (9 handed) Converter on pregopoker.com

Hero (t1500)
UTG+1 (t1470)
MP1 (t1815)
MP2 (t1625)
MP3 (t1045)
CO (t1345)
Button (t1455)
SB (t1580)
BB (t1665)

Preflop: Hero is in UTG with T[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/club.gif[/img]
Hero calls t30, <font color="gray">UTG+1 folds</font>, MP1 calls t30, <font color="gray">MP2 folds</font>, <font color="gray">MP3 folds</font>, <font color="gray">CO folds</font>, <font color="gray">Button folds</font>, <font color="gray">SB folds</font>, BB checks

Flop: (t105) 7[img]/images/graemlins/spade.gif[/img] T[img]/images/graemlins/heart.gif[/img] 2[img]/images/graemlins/diamond.gif[/img] (3 players)
BB checks, Hero checks, MP1 checks

Turn: (t105) 3[img]/images/graemlins/heart.gif[/img] (3 players)
<font color="red">BB bets t90</font>, Hero calls t90, <font color="gray">MP1 folds</font>

River: (t285) 5[img]/images/graemlins/club.gif[/img] (2 players)
<font color="red">BB bets t180</font>, <font color="red">Hero raises to t500</font>

I checked this flop because the board is so dry that unless someone has an improbable underset, there's just not much to give me value. Given that, should I raise the turn, or call hoping for an overcall/hoping he fires again on the river?