$44 Level 1 on the Button

[bigbmac1685]

Absolute Poker
No Limit Holdem Tournament
Blinds: t10/t20
9 players
Converter

Stack sizes:
UTG: t1480
UTG+1: t1400
MP1: t1490
MP2: t1810
MP3: t1500
CO: t1470
Hero: t1450
SB: t1480
BB: t1420

Pre-flop: (9 players) Hero is Button with 7[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/club.gif[/img]
UTG calls t20 <font color="aaaaaa">(pot was t30)</font>, 4 folds, <font color="#cc0000">CO raises to t40</font>, Hero calls t40 <font color="aaaaaa">(pot was t90)</font>, <font color="#cc0000">SB raises to t140</font>, BB folds, UTG calls t120 <font color="aaaaaa">(pot was t250)</font>, CO calls t100 <font color="aaaaaa">(pot was t370)</font>, Hero calls t100 <font color="aaaaaa">(pot was t470)</font>.

Flop: 6[img]/images/graemlins/club.gif[/img] 3[img]/images/graemlins/spade.gif[/img] T[img]/images/graemlins/club.gif[/img] (t580, 4 players)
<font color="#cc0000">SB bets t320</font>, UTG folds, CO calls t320 <font color="aaaaaa">(pot was t900)</font>, Hero?

Whats the move here?