Good or bad spot for a flop check/raise

[Pharity]

Bet or c/r?

Two of the players to my left are aggressive (no maniacs), and two are passive.

Party Poker 2/4 Hold'em (9 handed) internettexasholdem.com

Preflop: Hero is BB with J[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img]. MP3 posts a blind of $2.
UTG calls, <font color="#666666">2 folds</font>, MP2 calls, MP3 (poster) checks, CO calls, <font color="#666666">1 fold</font>, SB completes, <font color="#CC3333">Hero raises</font>, UTG calls, MP2 calls, MP3 calls, CO calls, SB calls.

Flop: (12 SB) 5[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(6 players)</font>
SB checks, Hero?..

Final Pot: 6 BB