How do you fix the crease in a suit?

Several years ago, as a snot-nosed collegian, I scored one of my greatest coups ever: A brilliant DB navy Oxxford pinstripe. I've had the suit for over 5 years, and it's in very good condition, as I keep it among the suits that I reserve for special occasions. (Read: It comes out 4-5 times a year, max) Anyway, to my point. Apparently, at some point, I was a little off when folding the pants for the hanger, and one of the legs now has a very vague crease that seems to start in two different places. When I line up the seams while folding the pants, I see where the crease now existing in the one leg is not where the original crease was and ought to be. I wouldn't dare touch the thing myself, and I'm very cautious when it comes to tailors because a young lawyer's salary is not such that I could simply replace a suit like this. The suit has never been cleaned or pressed, and I am wary of pressing it, as the suit has a certain "liveliness" that, I fear, would be jeopardized by having it unnecessarily pressed. If you've seen the way lapels on a great suit look, you know why I fear having it pressed.

Recommendations?

Quite right, old bean!