He is definetly 3betting light. I think 4bet to 25 preflop would be fine, especially if you havent done it before. Fold if he pushes. In this situation, do this whatever cards you have.
Read this post:
http://forumserver.twoplustwo.com/showfl...=1#Post12992141
As played, I would raised to 60 (1,5 x total pot) on the flop.