Checking the turn definitely makes sense, and you're pretty close between calling and folding. I'd lean towards the fold, actually. As for the river, I like it. Check/calling gets you nothing when you're ahead and costs you when you're behind. Bet/folding means you lose or win the same amount whether behind or ahead, which seems fair.

Edit: Totally missed that hero has the A [img]/images/graemlins/heart.gif[/img]. Whoops. All things considered, I like the line.