roll your own:

http://www.peterwhitecycles.com/fitting.htm

I don't like to pay for this stuff. There's value in having a pro give you experienced advice and wisdom. But it's more valuable to me to figure something out, maybe make a mistake or two along the way, do some tweaks, find out how to measure and adjust my own rig, and then call it done and get back to riding.
Also, get opinions for free from other guys who have paid for this stuff near your area and see what they say about your fit, and about the experts who gave them fitting tips.
Keep in mind that the changes you make this time are probably not final anyway, so you shouldn't submit yourself to a lifetime of expert fitting costs.
There are surely some expert fitting coaches on these boards so for their benefit, it's not bad to get their service, once you find out which expert to go to. But take good notes and think about how you can apply it yourself in the future.
Don't move too fast either: whether you do the fit yourself or the expert provides it, make small changes and then gradually build up the mileage on the new fit. Start out with too much mileage on a new fit and if it's not right for you, you'll be injured and sitting out for a while writing about it on these forums.