Big pot... call it down?

[tpir90036]

UTG limper who is loose passive as far as i can tell limps, I raise A[img]/images/graemlins/heart.gif[/img]A[img]/images/graemlins/diamond.gif[/img], 2 cold callers and the blinds call:

flop (6 players): T[img]/images/graemlins/heart.gif[/img]6[img]/images/graemlins/heart.gif[/img]2[img]/images/graemlins/club.gif[/img]
SB checks, BB checks, UTG bets, I raise, MP cold calls (lunatic), LP and blinds fold, UTG calls

turn: (3 players) 4[img]/images/graemlins/spade.gif[/img]
UTG checks, I bet, MP calls, UTG check-raises, I ???

(i am in no way concerned with MP)
easy laydown?
easy call down?
somewhere in between?