6-max 5/10 NL heads up hand, what's your river play and why?

[Mizzles]

Your river play and why?

If bet, how much?
Check-raise?

Party Poker No-Limit Hold'em, $ BB (6 max, 5 handed) converter

UTG ($1545.74)
MP ($735)
Button ($1526)
Hero ($1341.50)
BB ($1013)

Preflop: Hero is SB with 9[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/heart.gif[/img]. Hero posts a blind of $5.
<font color="#666666">3 folds</font>, <font color="#CC3333">Hero (poster) raises to $30</font>, BB calls $25.

Flop: ($70) 8[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/spade.gif[/img], T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $60</font>, BB calls $60.

Turn: ($190) K[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $100</font>, <font color="#CC3333">BB raises to $275</font>, Hero calls $175.

River: ($740) 8[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero ???