Straight but....

[Foucault]

Early in the Stars $300. My image should be TAG but able and willing to make moves. Villain seems like he'd be a small loser at these stakes, not awful but a little too active and reluctant to give up on a pot.

Poker Stars, $300 + $20 NL Hold'em Tournament, 25/50 Blinds, 9 Players
LegoPoker Hand History Converter

UTG+1: 2,975
UTG+2: 3,170
MP1: 1,590
MP2: 2,630
CO: 7,300
Hero (BTN): 5,585
SB: 1,710
BB: 3,590
UTG: 2,580

Pre-Flop: (75) 6[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/diamond.gif[/img] dealt to Hero (BTN)
5 folds, <font color="red">CO raises to 150</font>, Hero calls 150, SB folds, BB calls 100

Flop: (475) A[img]/images/graemlins/heart.gif[/img] 5[img]/images/graemlins/spade.gif[/img] 8[img]/images/graemlins/heart.gif[/img] (3 Players)
BB checks, <font color="red">CO bets 350</font>, Hero calls 350, BB folds

Turn: (1,175) 4[img]/images/graemlins/heart.gif[/img] (2 Players)
CO checks, <font color="red">Hero bets 785</font>, CO calls 785

River: (2,745) A[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">CO bets 800</font>, Hero?

Is there value in a raise? How much? If less than all in, how do you respond to a 3-bet shove?