I have concluded that one or both of my existing AMD Athlon 64 and Jetway K8M8MSR2 mobo, socket 754 have gone toes up and must be replaced. I have found the following mobos on ebay: AMD NVIDIA PCI EXPRESS SKT 754 FSB 800 ATX ASUS K8U-X ASUS K8V-MX with the AMD at apx $25 and both ASUS less than $20. Will anyone with experience on any of these 3 boards please share your recommendation with me? While considering replacement/upgrade, is it sensible to stay with a socket 754? If it is not significantly more to move to a later/better socket? If the latter, which and why? TIA.