The listing, Linksys Wireless-G Router Running Tomato Firmware has ended.
Turbo-charge your home network with this lightly-used Linksys WRT-54G (ver. 2) Wireless Router running Tomato!
Tomato Firmware Review: http://lifehacker.com/344765/turn-your-60-router-into-a-user+friendly-super+router-with-tomato
Some Technical Information: http://en.wikipedia.org/wiki/Linksys_WRT54G_series
http://en.wikipedia.org/wiki/Tomato_Firmware
This router is was used for about a year and has been sitting in my closet for the past several. Since the Linksys Firmware is pretty lame, I upgraded it to the Tomato v1.25. (V1.25 is the current stable version which you can get from the Tomato Website: http://www.polarcloud.com/tomato.)
For the hackers out there - Version 2 of the WRT-54G MAY have 32mb of ram. You need to crack open the case and check the ram chip and board revision. If you're in luck, you'll need to use the OpenWRT firmware and you might as well over-clock the unit... (LAN Party?)