Hi Audio~~Chip, Learndirect could be a starting point for you Audio~~Chip, they have courses on Windows XP Professional MCSE, Windows 2003 Server and Cisco to name a few. http://learndirect.co.uk/browse/homeofficeit/
There is the Open University, if you want to go down this indepth route. http://www3.open.ac.uk/study/atoz/allcourses.htm
I have taken course with both providers in the past and, found them to be good.