Did you have a look at the 'Painters Pit Stop' forum. They have some great threads on spraying paint. I've been trying to turn a spare room into a spray booth for years but keep doing other things instead!
Would love to have a spray booth, big enough for a car....a big car. ;) Currently have access to two mains compressors and one three phase one. But like the idea of an electric one, the sealey one on offer at the mo.
I still want to buy an electric paint sprayer and Airhead was right....but the I want one is growing strong.