My current compressor is a Coleman powermate premium, oil less, 11 gallon, 1.5 hp, 6cfm at 40 psi, 4 cfm at 90 psi. For the most part it does the job needed, however it's louder than our 80 gallon Quincy at work. I've looked at Quincys but i have a hard time spending 650 dollars for a little 20 gallon. Do you guys have any other suggestions? I'd rather not go smaller, and I want to buy new.