180stars hand, suggestions?

So the hand before it was raised PF (4xBB) by the UTG+1 and called by MP1 folded to me where i made it 12xBB and took it down PF. I showed KK (to do the same play later and to show that Im will reraise with real hands). Other than this hand I have been playing TAGish (however, I just moved tables less than 10 hands ago, so no real info on people). I was just wondering how you would play this out.


blinds are 50/100
Seat 1: (1388 in chips)
Seat 3: Villian (4419 in chips)
Seat 4: (3282 in chips)
Seat 5: (1460 in chips)
Seat 6: (2555 in chips)
Seat 7: (4430 in chips)
Seat 8: (1100 in chips)
Seat 9: Hero (6005 in chips)
Villian: posts small blind 50
Seat 4: posts big blind 100
*** HOLE CARDS ***
Dealt to Hero [Q[img]/images/graemlins/diamond.gif[/img] Q[img]/images/graemlins/heart.gif[/img]]
Seats 5-8 fold, Hero raies to 400, button folds, Villian reraises to 800
What is your move here?
As people tell me what goes on I will go through the rest of the hand and ask what you would do.