Flopped nut straight w/ flush draw... what's the best line?

[iStackBooks]

Full Tilt, 180 person $26 stg

I'm on the button T [img]/images/graemlins/club.gif[/img]9 [img]/images/graemlins/club.gif[/img]. Blinds are 50/100 and I have around 8,000 chips. Action folds to the cutoff who limps. I raise to 350, sb calls, cutoff calls.

Flop: Q [img]/images/graemlins/club.gif[/img]J [img]/images/graemlins/heart.gif[/img]8 [img]/images/graemlins/club.gif[/img] (1,150 in the pot)

Both check and action is to me...