ECS K7S5A (rev 3.1) for sale $35 buyer pays shipping.
The board has the following features
Built in 10/100 LAN
Built in AC97 sound
2 SDR memory slots
2 DDR slots (DDR and SDR can not be used in conjunction)
1 AGP 4x fast writes
SIS 735 chipset (fast as AMD's 760)
Full ATX form factor
This is a very cool running, incredibly fast socket A motherboard with support for Athlon XP processors up to 2000+ and older thunderbird core athlons.