Harold Martin, who runs the
Sherlock Channels website, recently wrote
an article for O'Reilly covering some interesting remote access tips and tricks. One of the more interesting tidbits was the use of AppleScript to pop up a display window on the screen of the remote machine -- useful if you connect to your home machine while your significant other is using it, and you'd like to pop a greeting on the screen for him/her :).
There are some other useful hints in there as well, so give it a read-through if you're interested in finding out more about remote access and control ... and as a general comment, O'Reilly's
MacDevCenter has a ton of great articles, many of which non-developers (such as me) may even find interesting.