Try this one on for size.
http://www.devilbiss.com/if_02_display.asp?prodid=EXL-620G&prodname=EXL%20HVLP%20GRAVITY%20Feed%20Spray%20Gun
It costs a little more than $100, but is as good as any $300 gun that I have ever used. I've owned one of these for about 12 or so years now and have painted around 30 cars, 2 CJ-6's, 4 Norton Commandos and God knows what else. It performs flawlessly and the various tips for it are reasonably priced. By the way, I have also sprayed dozens of pieces of furniture with the Pre-cat laquer and they have all turned out beautifully. (If I must say so myself)
The gun is available all over the internet just Google "Devilbiss Finishline".
Good luck,
Tom