I'm quite fond of my
Fini AirBoss for this sort of thing. It's about as compact as I've seen any compressor, and has enough guts to get tire up to 80 psi before you die of old age, and is slightly quieter than many small compressors. (That is to say, it's just quite loud, but not very, very loud--you still don't want to use it during quiet hours!)
The built-in inflator hose isn't all that great, and is useless for dual wheels. The solution, of course, is to use the standard air hose and an ordinary inflation chuck and ignore the other one.
It's not entirely obvious from the pictures just how small this is compared to most other compressors, even little ones. It's somewhere around the size of one of those $20 portable tabletop gas grills or maybe a three-pack of paper towels.
