Flopped set OOP multiway on monotone board

[Downrock]

New to this table, how should I play this flop being OOP?

Full Tilt Poker
No Limit Holdem Ring game
Blinds: $0.05/$0.10
5 players
Converter

Stack sizes:
UTG: $10.45
CO: $2.45
Button: $1.55
Hero: $9.90
BB: $22.95

Pre-flop: (5 players) Hero is SB with 6[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/club.gif[/img]
<font color="#cc0000">UTG raises to $0.35</font>, CO folds, Button calls, Hero calls, BB calls.

Flop: 7[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/heart.gif[/img] ($1.4, 4 players)
Hero..

[netstorm]

3/4 to PSB, call a raise.