-48VDC supply for home lab?

Greetings NANOG'ers! I have a small home lab which I mostly use for learning and testing. I'm likely to receive some gear that needs negative 48VDC (ie: positive ground). Mains is a typical 120VAC, 60Hz. Can anyone recommend a power supply, reasonably priced, to go from 120VAC down to -48VDC@10Amps? Something that fits in a two post rack would be preferred, but not required. Thanks, Mark