Bubble: should I call with 65o?

[Insty]

Party Poker 20+2 No-Limit Hold'em Tourney, Big Blind is t200 (4 handed) converter

saw flop|<font color="#C00000">saw showdown</font>

<font color="#C00000">Hero (t970)</font>
UTG (t3200)
Button (t3160)
<font color="#C00000">SB (t670)</font>

Preflop: Hero is BB with 6[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/spade.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">SB raises to t670 (All-In)</font>, Hero ?


UTG and Button are both loose and will call anything, and have been rivering pots all game.
I've been getting no cards at all to take them on with. SB has been playing the odd pot and I'd gone over the top of his SB completion last round (he folded).

Is it worth fighting him? Or should I just give him the 200?