NL100- 56 Flops A Straight

[Jeff76]

Hero has been playing like a maniac, and the table probably thinks I'm a donk due to my agressive (and somewhat odd) PF raising. Villain hasn't played too many hands, has limp folded to me PF (also limp called minraise then c/f the flop), bet small OOP into a multiway pot with bottom pair on an A high flop.

The other players have been playing fairly tight against aggression.

My thought here is that my I could really get wacked by a re-draw here, so I really want everyone out except for CO, who clearly has a real hand.

Help me pick a re-raise:

Poker Stars
No Limit Holdem Ring game
Blinds: $0.50/$1
8 players
Converter

Stack sizes:
UTG: $20.45
UTG+1: $82.95
MP1: $52
MP2: $52
CO: $60.20
Button: $120.75
Hero: $137.45
BB: $66.80

Pre-flop: (8 players) Hero is SB with 5[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/heart.gif[/img]
2 folds, MP1 calls, MP2 folds, CO calls, Button folds, Hero calls, BB checks.

Flop: 9[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/heart.gif[/img] ($4, 4 players)
<font color="#cc0000">Hero bets $2</font>, BB calls, MP1 calls, <font color="#cc0000">CO raises to $5</font>, <font color="#cc0000">Hero raises to ????</font>