The NY Times discusses the issues, solutions, and equipment in the area of wirless home networking. If you didn’t know that powerline networking is working on Gigabit speeds or where you might wish to deploy it check out the full article at http://www.nytimes.com/2009/08/13/technology/personaltech/13basics.html.
A reminder that for so many of the current uses, a wired network provides the best solution. I have run into more and more issues with folks using only wireless and assuming that with the convenience comes everything else. Trade-offs occur.