200NL - TPTK value shove river?

[ir0nphist]

villain is 20/17/3.8, I'm 24/18/3. No real history between us.

What's your play on the river?

Full Tilt No-Limit Hold'em, $2 BB (5 handed) Full Tilt Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

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

Button ($155.50)
<font color="#C00000">Hero ($410.70)</font>
<font color="#C00000">BB ($222.40)</font>
UTG ($153.05)
MP ($53.90)

Preflop: Hero is SB with A[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/spade.gif[/img].
UTG calls $2, <font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to $8</font>, BB calls $6, UTG calls $6.

Flop: ($23) Q[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets $20</font>, BB calls $20, UTG folds.

Turn: ($61) T[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $45</font>, BB calls $45.

River: ($151) 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero ?