A little searching around and I found this,
http://www.ezsystems.com/dcat.cgi?i=ADAFX51BOX' ">http://www.ezsystems.com/dcat.cgi?i=ADAFX51BOX
They're not rated on resselerratings so I don't know if they're reliable or not and you're going to pay a lot more for the chip right now. I'd just wait for newegg or another good site to get them in stock before buying. Waiting a little longer won't kill you