well to connect to your own pc's, if it's xp or nt, "remote desktop" is built in..
here's a tutorial on it -
http://www.microsoft.com/windowsxp/u...moteintro.mspx
for monitoring your employees, you can install this on your pc/laptop.. and install a "client" version of this on their pc's -
http://www.softactivity.com/
it'll let you monitor them in realtime, see their browser history, etc.