Ha, I'm not easily swayed. I have more or less intimate familiarity w/ all the popular modern OS's, short of the modern Mac (and even there I am a NeXT afficianado), and several esoteric ones.
Just curious, since we use Linux-hosted Samba shares also -- what minor problems did you run into and solve?
How To Enable Network Share Between Visat and Mac OS X or Linux
I take it you don't log out the main user. Which mechanism do you use? Fast-switch or RunAs? or something else?
Right. There's a "Switch User" on the start menu, hidden behing a little right-arrow on my desktop. I'm thinking hard here, and I don't know of any other OS that does this. Does OS X?
KDE does this on Linux.