I am going to buy an air compressor this weekend, I am starting to really get into doing all of my own work, and I need to start getting some air tools. I was thinking about one of the harbor frieght ones. I have no idea what kinda specs i should be looking for. I am gonna run a grinder, and a 1/2 drive impact for now. In the future I would like to learn to do my own painting. What do you guys suggest as a fairly low cost but reliable compressor that will last me for a while?