It will probably be the same price scale as XP is now; but specific prices for the different versions is wide and second guessed. We will have to wait for Beta even to know what versions Microsoft is making, at which point an idea on which version will cost what is more likely. I'd guess Home will be about $80.
They have said Second Quarter 2006; May is a possibility but you'd expect Late May or June, possibly Late June if indeed it doesn't slip into Third Quarter.
A Knight is sworn to Honour. His heart knows only Virtue. His blade defends the helpless. His might upholds the Weak. His word speaks only truth. His wrath undoes the Wicked.