Value bet this river?

[jcm4ccc]

Early hand in a $10 tourney

Party Poker
No Limit Holdem Tournament
Blinds: t20/t40
10 players
Converter

Stack sizes:
UTG: t3000
UTG+1: t3000
UTG+2: t3000
MP1: t2960
MP2: t3000
MP3: t2980
CO: t3040
Hero: t3417
SB: t3020
BB: t2583

Pre-flop: (10 players) Hero is Button with 2[img]/images/graemlins/diamond.gif[/img] 2[img]/images/graemlins/club.gif[/img]
5 folds, MP3 calls t40 <font color="#aaaaaa">(pot was t60)</font>, CO folds, Hero calls t40 <font color="#aaaaaa">(pot was t100)</font>, SB calls t20 <font color="#aaaaaa">(pot was t140)</font>, BB checks.

Flop: 3[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/heart.gif[/img] (t160, 4 players)
SB checks, BB checks, MP3 checks, Hero checks.

Turn: 4[img]/images/graemlins/club.gif[/img] (t160, 4 players)
SB checks, BB checks, MP3 checks, Hero checks.

River: 2[img]/images/graemlins/spade.gif[/img] (t160, 4 players)
SB checks, <font color="#cc0000">BB bets t318</font>, MP3 folds, Hero ??? <font color="#aaaaaa"></font>