I like roy's Stop and Go, but I wouldn't fault calling it down, either, depending on the flop and turn, of course

If you don't mind really pushing the aggression up a bit, you could also check raise the turn. You run the risk of being faced with making a decision if you're three-bet, but you also increase the chance he'll fold it.

At the very least, I like the check raise on the turn better than four-betting the flop, but still won't fault checking it down. [img]/images/graemlins/smile.gif[/img]