Party 11$ - Should I fold KK ?

[Khon]

Early on, still 10 players at the table, everyone at roughly 2000. Hero has 1600.

Blinds at 30/60.

Hero had K [img]/images/graemlins/heart.gif[/img]K [img]/images/graemlins/club.gif[/img]

UTG calls 60, UTG+1 folds, Hero raises to 200, ...., BB calls 140, UTG calls 140

Flop comes(pot 630):

J [img]/images/graemlins/heart.gif[/img]10 [img]/images/graemlins/heart.gif[/img]10 [img]/images/graemlins/spade.gif[/img]

BB checks, UTG checks, Hero bets 400, BB folds, UTG bets 1400 all-in, hero ?

So what's my move here ? Getting 2:1 potodds with the overpair, but looks likely that I might be facing trips, Could be AJ, QQ, Ace high flush draw or a bunch of other things too though.

And should I have played it differently, perhaps bigger PF bet ?