Nice flop from the big blind, about 200BB deep vs small blind

[DGDolly]

He hasn't been sitting long, so no info. I'm just curious what you guys think of my line given the stack sizes, and what you think I should do on the end.

Full Tilt Poker, $0.05/$0.10 NL Hold'em Cash Game, 5 Players
LegoPoker Hand History Converter

BTN: $4.80
SB: $25.80
Hero (BB): $22.50
UTG: $5.50
CO: $10

Pre-Flop: 3[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/spade.gif[/img] dealt to Hero (BB)
2 folds, BTN calls $0.10, SB calls $0.05, Hero checks

Flop: ($0.30) 5[img]/images/graemlins/spade.gif[/img] 2[img]/images/graemlins/diamond.gif[/img] 9[img]/images/graemlins/spade.gif[/img] (3 Players)
SB checks, <font color="red">Hero bets $0.30</font>, BTN folds, <font color="red">SB raises to $0.60</font>, Hero calls $0.30

Turn: ($1.50) Q[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">SB bets $1.50</font>, Hero calls $1.50

River: ($4.50) 6[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">SB bets $4.50</font>, Hero ??