Where can I find a socket 7 motherboard?

Hello people. You seem like a rather informed lot, so I'll pose a question to you.
I have an Asus P5A-B dying a slow painful death and I would like to replace it with another socket 7 motherboard.
I've been surfing the net and have had terrible luck trying to find a vender who sells these motherboards. I'd rather not use E-Bay unless as a last resort. There must be a reputable vender who still has these boards in stock, preferably new, but I'd consider refurbished with a warranty.
Yes I know the technology is really dated but it still works for me. The peripherals I have work well with this old setup. I also have an Athlon XP system so I'm not missing anything.
Any help on this matter would be truly appreciated.

Luke