There is an old Talmudic saying "Let not your learning exceed your deeds lest you be like a tree with many branches and few roots." In other words, read all you want, but there is no substitute for laying hands on. And what better way than to sit at the foot of a master?
http://www.apple.com/seminars - Software vendors often conduct free seminars. Demos are on Macs, but the software is usually the same for Windows.
http://www.compumaster.net - Inexpensive seminars around the nation. Normally not hands-on, but usually very informative.
http://www.cmpsolv.com/los/links.html#school - Leslie O'Shaughnessy Studios has links to schools, seminars and workshops.
http://www.johnpaulcaponigro.com - A true master of Photoshop as a tool of the artist, JPC teaches intimate seminars for five or fewer students at a time at his studio in Maine.
http://www.juliadean.com - Julia Dean runs workshops on photography in Marina del Rey, CA. No online registration.
http://lightspeedmedia.biz - A big conference on QuickTime Virtual Reality photography.
http://www.nyip.com - New York Institute of Photography. Online classes, seminars, contests, references. They even have info on building websites.
http://www.ppa.com - Professional Photographers of America convention.
http://www.photoshopseminars.com - Great inexpensive Photoshop seminars.