Amazon has the Linksys Wi-Fi Cable/DSL router/firewall I bought on sale again. If you're looking for a good WiFi base station and don't need the modem, AOL connectivity or stylish look Apple's base station offers, the Linksys is a good bet, I think.

Beware that it doesn't do AppleTalk over WiFi, apparently, but if you're using OS9/OSX/Win boxes exclusively, this shouldn't be an issue.