[Pharcyde]

First off, pot the flop. You've got the 2nd nuts in a multiway pot where one of your opponents is a maniac. Get as much money in there as possible.

That turn card is scary, but given BB's stats (how many hands?) there's no way I'm folding to his bet. Calling definitely isn't an option because there's still a good chance you have the best hand here, and you don't want to entice SB to call by laying him 4:1 pot odds. I raise to $10 on the turn. That gets SB's dead money in if he wants to come along for the river, and makes the rest of your decisions much easier. If he comes back over the top, you're probably behind. If he calls, pray for a low, non-diamond on the river. I'd be suspicious if he bet into me on a blank river. Probably wouldn't call more than a 1/2-pot bet if that happened.