Quoting info at smallinnovations dot nl (info@???):

> The easiest way would be to make a connection with ssh  -X or -Y which
> enables X-forwarding. You then can start a individual X program from the
> commandline but also the complete WM. Perfectly showing how capable
> linux is in use. For more extended capabilities you could install x2go
> server and client which will also make possible to have more then one
> remote desktop.

I _try_ to keep up with the remote-imaging options, here:
http://linuxmafia.com/faq/Legacy_Microsoft/vnc-and-similar.html
(This area seems to be constantly changing.)