Lately I have found *a lot* of good tutorials on the Microsoft site. Perhaps they actually revamped their technical writing staff as I heard rumblings about this some time ago...
Anyway, this is an excellent tutorial on setting up wireless networks at home or in a small office. This will benefit those who are just getting into wireless. It touches on wireless standards and different terminology and whatnot too.
I'm providing the link rather than cut n paste as there are some good diagrams as well.
Hope this helps!