http://www.atacom.com sells guaranteed C1 stepping 2.4 Northys for a $20 premium over the normal ones. This is about the only place I've found where you can be assured that you'll recieve this particular stepping. As far as finding 1.8 C1s; good luck: as far as I know, only OEMs have access to these chips as Intel has yet to fully trickly down to the lower speed chips. I've heard that some people are having fairly good luck with buying Dell computers and taking 1.8 C1s outta them. Apparently, the chances are pretty damn good that you'll end up with a C1.