50NL - how's my line here?

[alex-star]

The villain was 34/3 after 50 hands or so. He seems to be fairly tricky. What's our line on the river? How often am I looking at an overpair here?

No Limit Holdem Ring game
Blinds: $0.25/$0.50
9 players
Converter

Stack sizes:
UTG: $18
UTG+1: $44.60
Hero: $64.45
MP2: $33.80
MP3: $94.05
CO: $30.11
Button: $32.15
SB: $94.10
BB: $54.80

Pre-flop: (9 players) Hero is MP1 with J[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/diamond.gif[/img]
2 folds, <font color="#cc0000">Hero raises to $2</font>, MP2 calls, MP3 calls, 4 folds.

Flop: 2[img]/images/graemlins/spade.gif[/img] 5[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/club.gif[/img] ($6.75, 3 players)
<font color="#cc0000">Hero bets $5</font>, MP2 folds, MP3 calls.

Turn: 9[img]/images/graemlins/club.gif[/img] ($16.75, 2 players)
<font color="#cc0000">Hero bets $10.5</font>, MP3 calls.

River: 2[img]/images/graemlins/diamond.gif[/img] ($37.75, 2 players)
Hero ??