midway into Stars mil, 4 way flop...best line?

[AceCR9]

not really sure what is the best line here w/ 4 to the flop and these stack sizes.

PokerStars Game #10256123611: Tournament #51167518, $200+$15 Hold'em No Limit - Level XI (750/1500) - 2007/06/03 - 19:29:40 (ET)
Table '51167518 822' 9-max Seat #5 is the button
Seat 1: Pongo69 (72714 in chips)
Seat 2: CharityCse (51750 in chips)
Seat 3: BreakRibs (60083 in chips)
Seat 4: TavistD (108031 in chips)
Seat 5: thewh00sel (16105 in chips)
Seat 6: oversleep (21700 in chips)
Seat 7: Jimmie831 (8125 in chips)
Seat 8: Alibaba112 (27173 in chips)
Seat 9: Yugless (38580 in chips)
Pongo69: posts the ante 150
CharityCse: posts the ante 150
BreakRibs: posts the ante 150
TavistD: posts the ante 150
thewh00sel: posts the ante 150
oversleep: posts the ante 150
Jimmie831: posts the ante 150
Alibaba112: posts the ante 150
Yugless: posts the ante 150
oversleep: posts small blind 750
Jimmie831: posts big blind 1500
*** HOLE CARDS ***
Dealt to CharityCse [Ts Ks]
Alibaba112: folds
Yugless: folds
Pongo69: folds
CharityCse: raises 2700 to 4200
BreakRibs: calls 4200
TavistD: calls 4200
thewh00sel: folds
oversleep: folds
Jimmie831: calls 2700
*** FLOP *** [Jc 2s 3s]
Jimmie831: checks
CharityCse: ???