you could always take a look at this one.. I have this one in my house when Airbrushing. and noone knows when it kicks on.
http://www.chpower.com/chimages/catalog/active/comp_FP2040_500x401.gif
the link to the site is:
http://www.chpower.com/index.asp
just click on residential compressors and all the info will show up. Also they are sold in any Walmart for under $100.
Hope this helps
Paul