Yeah, the spray gun thing is an experiment. I was going to order an Astro LVLP gun. But I read some good things about the ATD HVLP guns. They are supposed to require less volume than other HVLPs, and a set of 3 was about the same price as the Astro alone (still cheap).
If the ATD gun doesn't work out I'm going to try the Astro LVLP.
PkSpawn, I'll check on the fill/recovery time for you. However, it seems like tank size will determine how soon the compressor cuts in, and this one is a bit smaller than what you have, so you may find it still runs quite a bit depending on what you're doing. However, it supposedly will last longer when run at high duty cycles than an oilfree. I know running the die grinder @ 90psi it kicked on pretty soon, but it was able to keep up.
I believe it requires a 15 amp circuit. There should be details on the Sears site and some of the reviews had good information, too. I'll check the motor and also the manual tonight.
If I'd had a 230v outlet already in place it would have been tempting to go with a stationary compressor. But I figure some day this might make a really nice "second" compressor if I just can't live without a big one.