UB $1/2 PLO Flop decision

[jocelyn1985]

Ultimate Bet - Pot Limit Omaha Cash Game - $1/$2 Blinds - 6 Players - (LegoPoker Hand History Converter)

SB: $299.35
Hero (BB): $192.95
UTG: $215.10
MP: $274.90
CO: $393.95
BTN: $74.50

Preflop: Hero is dealt K[img]/images/graemlins/diamond.gif[/img] 9[img]/images/graemlins/spade.gif[/img] T[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/club.gif[/img] (6 Players)
UTG folds, MP calls $2.00, <font color="red">CO raises to $4.00</font>, BTN calls $4.00, SB calls $3.00, Hero calls $2.00, MP calls $2.00

Flop: ($20) 4[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/heart.gif[/img] 9[img]/images/graemlins/diamond.gif[/img] (5 Players)
SB checks, Hero...

Clearly my options were:

1 - Check with the intention of folding
2 - Check with the intention of c-raising
3 - Check with the intention of calling
4 - Lead out with some sort of intention!

Any pointers? I'm not really sure if I'm just being weak by check-folding this (obviously depending on the subsequent action after a check).

PS Wazz it was a pleasure to sit next to you at Gutshot, you clearly were my lucky charm hehe