Need help with this NL hand, how to play KK

[dutchgrl]

I was playing a 2/5 blind NL game at the Wynn hotel. Fairly tight game, I was ready to leave. I have about 1400 in front of me.

Two limpers, I look down at KK, make it 35 to go. One cold called, the two limpers call. Flop is

Qh 10c 2s

First limper(bad, predictable player) bets 50. TAG calls. I make it 150 to go, player behind me cold calls, and the other to call as well. Turn is

7s

First guy checks. TAG bets 400 into me. What do I do? He had about 1100 in the beginning of the hand. Guy behind me had about 400, the bad player about 1000. I know that I probably should have raised more on the flop.

Thanks!!!