Best time to buy routers is Christmas. I bought a 4 port linksys from
www.amazon.com and they had free shipping. Amazon sells lost of networking stuff; them and best buy too. Best Buy has an internet site too.
Another site is
http://www.personalhomenetworks.com/
It is run by the people at
http://www.homenethelp.com/web/howto/HomeNet-start.asp