10/20 hand, should I jsut buy a skirt?

[Jinx]

10 handed 10/20 game, full stacks for everyone involved. I raise K[img]/images/graemlins/heart.gif[/img]Q[img]/images/graemlins/heart.gif[/img] UTG, and to my surprise I get 5 cold callers. The players who cold called are a combination of tags and taggy fish. So 6 handed to the flop.

450 dollar pot on flop. Flop comes 9[img]/images/graemlins/heart.gif[/img]4[img]/images/graemlins/spade.gif[/img]2[img]/images/graemlins/heart.gif[/img]. I have no clue what to do, so I check. 2 other guys check, then a tag bets 400 dollars, the 2 guys behind him fold. The 2 players behind me if I call are somewhat taggish. what do I do now?