I think you made a wise choice. There is just no substitute for a 2 stage compressor. Although most for your tools are rated at 90#, you can regulate it down and you have lots of air in the tank if you use more than the compressor puts out for a short period of time. If you start out with 90# you are constantly waiting for the compressor. Although it is not recommended, the guys at my shop are always turning up the pressure on impacts so they hit harder. It doesn't seem to hurt them that much. The main thing is to keep the water out and keep the tools oiled.
