In this paticular hand I think you're going to get all his chips. My reasoning for that is because if you made a continuation bet on the flop he'd going to want to reraise you with a pair of jacks. AJ may not if he's trying to see a showdown for cheap because you could have an overpair. But I think right here I'd put him on an overpair or a set or a flush draw on the flop. if either of those are the case I'd want to lead out the turn with a semi weak bet.