Worth the risk?

[DarrenX]

We're not getting a consensus on this hand among my friends. Middle stages of a $109. Only history with this guy: Blinds 200/400 25a, average stack around 8K. He raises to 1200 (of his 14K) in the hijack, I push my 3700 stack from the co and he folds after a few seconds of "thought", getting 2.3:1.

A few hands later, I'm now in the BB (still 200/400 25a) with 7200. He has 13K. Folds to SB (villain) who instypushes. I have K [img]/images/graemlins/spade.gif[/img] Q [img]/images/graemlins/diamond.gif[/img]. Thoughts?