Who has one? Since the advice on cooking the perfect rice, I have become a stir fry monster. (My wife is excited just that I am cooking ANYTHING so she lies and tells me how good it is I think.) I've been using a huge cast iron fry pan, but I sure make a mess with it. Any CI Wok users? Is it worth paying the extra for the glass lid I see on some of them? Gimme the scoop on CI Woks!