I have a Family Photo program and archive I keep on my Linux computers (I like Windows, but I have found it is unreliable for maintaining huge archives of .tiff and .mp3 files uncorrupted in experience)

I need to get lots of files sometimes from relatives computers. People freak out when you want to pop open the Dell Case and pop in a Linux Hard Drive to get the data out, or casually suggest they should upgrade that PC with a HD Bay so they can go back and forth between Windows and Linux.

A modified Knoppix CD and a portable Linux, both running NFS client and server would be perfect.