Fold.At a risk of blowing my own trumpet, CCUUURRSE is probably the only player on the Full Tilt NL200 tables that earns more than me. (Although recently he has stepped up the limits playing on Pokerstars.)
He is a 12-tabler, BUT plays a very different (and very good) game compared with most of the multi-tablers. His stats show this to some extent. (He won the Pokerstars Sunday Million 12 months ago for $187k.)
He is well aware that you may have AK (and probably hopes you do) and I would put him on 44.
Admittedly he is often very aggressive on the turn (a mixture of bluff, semi-bluff, and value raises) but he'd most likely just call here with a flush draw.
Here is a very interesting thread on him:
http://forumserver.twoplustwo.com/showflat.php?Cat=0&Number=11092754&page=0&fpart=1&vc=1