At HD Expo in Chicago an Apple Reseller thought August would be the time SS Motherboards finally ship with Mac Pro because this motherboard will be a year old by then. Combine that with the processor price drops from Intel in late July and that would put us in a likely new Mac Pro scenario before the end of summer I think. But If it's longer I'm just gonna hold out because I plan on keeping the SS 8 Core for a long time - perhaps throughout the life of Leopard's reign. Can't justify the very large expense today knowing it's only a few more months before the entire line is refreshed.
But I applaud yalls courage to forge ahead in the meantime.