I treated myself a couple of months ago. I bought a 3.5 horsepower Kaeser Screw Compressor on a 60 gallon tank. That thing is so quiet and efficient when it cycles on, while the machine is running, you can't hear it run, and it will charge the 60 gallon tank from 90 to 150 PSI in about 45 seconds.
It was a little on the expensive side though. It was close to $4,500.00 with the tank and the drier, but I can stand next to it while I talk on the phone if it's running, and you can't hear it run
You can buy GOOD PARTS or you can buy CHEAP PARTS, but you can't buy GOOD CHEAP PARTS.