Dazed and confused

[Mroberts3]

pretty loose passive table, but there have been a few recent showdowns were some weak hands won some decent sized pots. I went for the checkraise on the flop to try and thin the field.. good idea or not? Do you guys see a way out of this hand or should I have played it the way I did. To be honest I felt very uncomfortable about my winning chances with so many in, but as they say in SSH the pot was big...

Party Poker 0.5/1 Hold'em (8 handed) converter

Preflop: Hero is MP1 with 9[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, UTG+1 calls, Hero calls, MP2 calls, <font color="#666666">1 fold</font>, <font color="#CC3333">Button raises</font>, SB calls, <font color="#666666">1 fold</font>, UTG+1 calls, Hero calls, MP2 calls.

Flop: (11 SB) 8[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, UTG+1 checks, Hero checks, MP2 checks, <font color="#CC3333">Button bets</font>, SB calls, UTG+1 folds, <font color="#CC3333">Hero raises</font>, MP2 calls, Button calls, SB calls.

Turn: (9.50 BB) 5[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">SB bets</font>, Hero calls, MP2 calls, Button calls.

River: (13.50 BB) Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">SB bets</font>, Hero calls, MP2 calls, Button calls.

Final Pot: 17.50 BB