Turn bet size with AA on drawy board

[I dunno]

Early in a four handed game. Buyin was $15 I think, not really relevant though.

Stack sizes

Hero 3,500
BB and UTG Cover

Blinds 25 - 50

UTG limps, button folds, I raise from SB with red Aces to 200, both BB and UTG call.

Flop J [img]/images/graemlins/club.gif[/img] 10 [img]/images/graemlins/spade.gif[/img] 2 [img]/images/graemlins/spade.gif[/img]

I bet 600, BB folds, UTG calls. I don't know much about UTG at this point, but I think he may be a bit of a calling station.

Turn is an offsuit nine. How much do you bet here?