Unless you need it to be an industrial type connector, a nice ghetto solution would be to harvest one from a cheap/old USB hub. Or just about anything with a PCB mounted A-Type USB connector.
EDIT:
You'll have to ask, but it looks like they'll re-terminate it into a PCB board, if that's what you're going for. It'd be custom, since I don't see any panel-mount B to PCB as a stock item, only A.
Yup, the one in the pic is from Lcom.
The depth is roughtly 1 3/8" and it sticks out of the panel about 1/4" which kinda sucks but some spacers will make short work out of correcting that.
I got a pair of the Neutrik ones from the link above today..... those are pretty cool.
Mister X, what's the trick to getting them to sell me a few connectors? The guy who responded gave me the whole "minimum 10,000 pcs" line, and I somehow doubt you bought that many
Try a distributor. I bought them from the closest distributor in Utah (who just happens to be my father) and got USB, FireWire, Ethernet, power, and audio for a military mod I'm doing.