I recommend two 120v air compressors. I have both of the compressors indicated below, and they work great, especially for old guys like me who want to save their energy for bike riding, not pumping up tires. They're not very expensive either.
http://www.amazon.com/InterDynamics-...624229&sr=8-11
http://www.amazon.com/Black-Decker-A...9&sr=8-1-fkmr0