I bought the Graco 3900 Spray Station at Lowes on Friday. Sprayed my first canvas today. Came out great and was very easy to do. I did spray a scrap canvas first to dial in the spray adjustment and get my technique down. I started with the adjustment all the way down and started working up. Eventually I opened enough to get splatter. Took maybe three or four passes to find the point of too much on the spray adjustment.
A little research on the Graco, and I found out the are made by Earlex. They are sold under both brands. Lowes had a Graco 2900 that had a lower wattage turbine. The 3900 included a "fine finish tip and needle". The 2900 did not, so I bought the 3900. It also came with a 1 gallon backpack that looks totally worthless. Doesn't matter as I don't need it anyway.http://www.spray-station.com/HV3900.html
A little further research on the Earlex sprayers showed that they make some higher end metal sprayers that are less expensive than the Fuji systems. I found some woodworking forums that spoke highly of these sprayers. Might be a worthy mid-price spray system between the Wagner / Graco and the Fuji systems.
The Earlex 3500 looks to be the same gun as the Graco 3900. The turbine is shaped different.http://www.earlex.com/hvlp.php
Also came across this system. Didn't find reviews on it. It is also priced between the Wagner / Graco and the Fuji systems.http://www.turbineproducts.com/