Quote Originally Posted by Pants_101
On the turn I'm pretty worried
I wouldn't be worried on this flop unless my opponent was super loose-passive, in which case I'm probably paying off his 5x anyway. This is a great flop for you to get some value from lower pairs than yours.

Quote Originally Posted by Pants_101
What was my opp doing here??
He very likely had a pair 66-99 and didn't believe you on the flop...you check the turn which very often indicates that you missed (he would most likely have folded the turn if you had bet there), so he thinks his hand is best and doesn't want to be rivered by your hi cards so he puts in a good bet to deny you odds. The hi card rivers, and completes the hand that he most likely puts you on and you bet at it so he folds.

As far as play goes, I would probably raise a little more preflop ($0.70 - $0.80) OOP with limpers - but not much more so that's not a big deal.
If you want to be a little tricky the flop raise is fine, you could certainly go closer to pot. Then you might as well check-raise the turn allin. He probably folds there anyway but sometimes it looks suspicious enough to get a call from a lower pair.