Overstock has the Netgear SB104 Ethernet Starter Kit selling for $19.99 with $2.95 shipping.

Kit includes:

Two autosensing 10/100 Mbps NICs (model FA310)
One 4-port 10Base-T Ethernet hubs (model EN104TP)
Two 25-foot Cat 5 UTP cables
Power adapter for hub
Drivers and diagnostics floppy disk
Wall mount kit
How-to guides

:o