[italianstang]

1 - Don't raise like that preflop, what is the point? You generally expect that any limpers will call such a small raise, and the BB who, from your description, is looking for chances to get in hands where he can try to outplay you will call regardless of what he has.

2 - The villain checking before you on the flop puts you in a strange position, betting anything appears to be a continuation bet of some sort. Given that he is gonna play tricky on you I say check behind him and then try to re-steal it on the turn when he inevitably bets.