Quick River Decision

[The Bear]

Party Poker 15/30 Hold'em (10 handed)

Preflop: Bear is BB with 8[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/heart.gif[/img].
<font color="666666">1 fold</font>, UTG+1 calls, UTG+2 calls, MP1 calls, <font color="666666">1 fold</font>, <font color="CC3333">MP3 raises</font>, CO calls, <font color="666666">1 fold</font>, SB calls, Bear calls, UTG+1 calls, UTG+2 calls, MP1 calls.

Flop: (14 SB) 5[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/heart.gif[/img] <font color="blue">(7 players)</font>
SB checks, Bear checks, <font color="CC3333">UTG+1 bets</font>, UTG+2 folds, MP1 folds, MP3 calls, CO folds, SB calls, Bear calls.

Turn: (9 BB) 5[img]/images/graemlins/club.gif[/img] <font color="blue">(4 players)</font>
SB checks, Bear checks, <font color="CC3333">UTG+1 bets</font>, MP3 folds, SB calls, Bear calls.

River: (12 BB) 8[img]/images/graemlins/diamond.gif[/img] <font color="blue">(3 players)</font>
SB checks, Bear checks, <font color="CC3333">UTG+1 bets</font>, SB calls


Call or fold? Does it even matter?