Hey, if you are as cheap as I am, I only buy MBs from NewEgg.com "refurbished." They are actually new, sometimes come in retail boxes with everything, more often just the MB.
I just bought Aopen or Abit (I forget) KT800 boards for $20 each. Yes, I have to dig up the rest of the stuff, but as I said, I'm cheap, abd NewEgg is the ONLY way to go.