Bad TP/TK....should I call on river?

PP 10+1
Villain had been raising and reraising a lot. He didn't show down many hands, but knocked out two players early with strong hands.

Party Poker No-Limit Hold'em Tourney, Big Blind is t100 (7 handed) converter

Button (t1345)
SB (t550)
Hero (t1265)
UTG (t520)
MP1 (Villain)/ (t2930)
MP2 (t400)
CO (t990)

Preflop: Hero is BB with J[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/heart.gif[/img].
UTG calls t100, MP1 (Villain)/ calls t100, <font color="#666666">4 folds</font>, Hero checks.

Flop: (t350) 8[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/heart.gif[/img], 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, UTG checks, Villain checks.

Turn: (t350) 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets t125</font>, UTG calls t125, Villain calls t125.

River: (t725) 5[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, UTG checks, <font color="#CC3333">Villain bets t325</font>.

Hero???

Final Pot: t1050

[illunious]

I fold. Even from your notes, I think I'd still give him respect for a better hand (dangerous board, 1/2 pot bet, 2 opponents). I would of bet a minimum of 200 on the turn (you gave him a good price if he had a straight draw).