Krypton C18G-400. Around 4k.
It uses the nVidia nForce 2 chipset which is generally regarded as the best chipset for Athlon XPs. It has GeForce 4 MX graphics onboard with upto 128MB shared graphics memory. The Asus A7N8X-VM is quite similar but costs more and has fewer features.
I've used several dozen C18G-400 mobos over the past two years. They perform well and none has failed except one that was struck by lightning via the LAN port.