I have a Linksys BEFW11S4 router/wireless access point which I use with two Airport equipped iBooks at home for wireless network access. It was only after I bought the Linksys that I found out that it doesn't support AppleTalk over the wireless network, only over Ethernet.
For most people, this wouldn't be an issue, but I have an Epson StylusColor 900N network printer, and unfortunately Epson's drivers (and those included in Mac OS X 10.2) only support network printing over Appletalk, even though the printer does support TCP/IP in Windows.
Upon upgrading my Macs to Mac OS X 10.2, I was pleased to find that not only does it include the Epson SC900N drivers in the OS, but also if I use one of my desktop Macs to share the printer, the iBooks on my wireless network can now print to it via TCP/IP (via the desktop). I can now print wirelessly and I only have to enable Appletalk on the Mac that is sharing the printer.
To enable Printer Sharing in Mac OS X 10.2, put a checkmark next to "Printer Sharing" in the Sharing preference pane. Any printers installed on the host Mac should then automatically appear in the Print Center window of any client Macs running 10.2 on the same network. Make sure you have "Show printers connected to other computers" enabled in the Print Center Preferences window.
Make sure you set the host Mac's Energy Saver settings to never go to sleep since clients won't be able to connect to printers shared by a sleeping Mac.
Mac OS X Hints
http://hints.macworld.com/article.php?story=20020827080905166