What kind of a printer do you have? if its one of those laser jet ones that can take a internal network card you might find some for cheap and you can connect it to your router.

newegg has a bunch of print server adapters. Depending on what you need, parallel or usb to wired or wireless you can find a few here.

It might also be a good idea to look at new printer for cheap.

here is a link for a ASUS wireless router $36.00 after MIR. Shipping could be extra. MIR valid until 5/4/08.