The Canon probably has a "standard" USB-mini connector that's fairly common on cameras (at least mine does). It's likely the Nikon that's a "special" (Lin's is).

My Canon SD1000 (shirt pocket point-n-shoot) and an older Fujitsu both accept the mini connector that comes in a "multi-connect" USB adapter kit, but Lin's Nikon (cheap) has to have the Nikon cable.

John