Your estimate is optimistic for all 3, leo-j. With only 2 days of holiday sales for this week, and consoles being luxury goods which people tend to seek out earlier than later if at all possible, the odds are much better of seeing ranges like this:
Wii: 200,000 to 600,000 (depends very heavily on supply remaining; I'm betting on lower numbers, as a quick crunch shows that their stockpile is heavily depleted to say the least)
360: 100,000 to 250,000
PS3: 100,000 to 250,000
Holiday sales drop off dramatically after Christmas; it's a historical fact. Only when a console is supply-constrained and in high demand do you see any potential for continued high sales after the holidays. So far, only a handful of consoles have ever managed that, and to my knowledge, the Wii is the only one to ever do that 2 years running.
Sky Render - Sanity is for the weak.
