one more main event hand

[billyjex]

2nd level. i have a decent read on everyone at the table.

player directly to me left showed up 30 minutes late. i hated him right behind me -- he was very aggressive, a smart LAG. he was a short asain guy who was talking to men the master at the break -- they seemed like good friends. he might have been a pro, but i didn't recognize him.

he was blinded off about 500 chips but quickly made them back by stealing pots. he has about 12k. i have about 10k w/ blinds of 50/100. my image is tight and conservative but still willing to be aggressive.

the SB is Erin Ness and the BB is a good internet player.

folded to me in the CO w/ 77. I raise to 300, LAG calls, blinds fold.

flop is 10 3 2r. pot is 750. i bet 400. LAG throws out 1000.

i really get the feeling he is trying to pick up the pot, assuming it didn't hit me.

what should my plan be? reraise to about 2500? call? fold?

i wasn't sure if i wanted to risk so much so early w/ low blinds, but felt there was a good chance i was ahead.