Wrong to shove here?

[Freyjan]

Just wondering if I should have played this more cautiously. This was a $10 SnG, 9 players. I had made a few bluffs earlier against the CO and I think he was starting to play back at me a bit. Maybe he was just getting cards at the right times, but he seemed to be raising me whenever I limped into a pot or put in a small raise. Villain in this hand, the BB, has been playing extremely poorly and lucking out. I've seen him call bets with four to a flush on the turn without any decent odds to do so. His range is extremely wide.

I was thinking of putting in a slightly larger PF raise, but I wanted the CO to come over top of me so I could reraise. That clearly did not work. I did not want BB drawing to a flush for cheap here on the turn. Was this bet spew? Should I have done anything differently? I would like opinions on how I played this.

Full Tilt Poker
No Limit Holdem Tournament
Blinds: t30/t60
5 players
Converter

Stack sizes:
Hero: t4275
CO: t2535
Button: t1205
SB: t1315
BB: t4170

Pre-flop: (5 players) Hero is UTG with K[img]/images/graemlins/spade.gif[/img] K[img]/images/graemlins/diamond.gif[/img]
<font color="#cc0000">Hero raises to t180</font>, 3 folds, BB calls t120 <font color="aaaaaa">(pot was t270)</font>.

Flop: T[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] 5[img]/images/graemlins/heart.gif[/img] (t390, 2 players)
BB checks, <font color="#cc0000">Hero bets t330</font>, BB calls t330 <font color="aaaaaa">(pot was t720)</font>.

Turn: Q[img]/images/graemlins/club.gif[/img] (t1050, 2 players)
<font color="#cc0000">BB bets t480</font>, <font color="#cc0000">Hero raises all-in t3765</font>, <font color="#cc0000">BB calls all-in t3180</font>.
Uncalled bets: t105 returned to Hero.

River: 6[img]/images/graemlins/spade.gif[/img] (t8370, 0 player + 2 all-in - Main pot: t8370)


Results:
Final pot: t8370


Thanks in advance for any advice.