Depends on other factors, but my bet is it'll take NPD for the month of September

Halo = NO(see ODST didn't push a console).

Natal=NO.

Price cut = YES.

Its possible but I don't think it will happen...it will probably make it sell more then the PS3 but no the Wii

Halo:Reach will sell a lot of copies,but, no hardware. Natal I don't know.

I do not think Reach will do much for HW. Natal is still so iffy, that there's no real way to tell. Still, I think it will at least give a slight boost, at the very least. But a price cut Natal at a good price with good marketing could be nasty. But, I doubt the price will be right to really push sales way over the top.

Microsoft can't compete with the wii  nintendo would just drop the price to 150 100 75 what ever the see fit to keep them number 1 :P

Pricecut yes Slim yes. First place worldwide only if the Pricecut is signifcant otherwise it will outsell just PS3. 100 Dollar Arcade 199 Elite then yes if Sony and Nintendo have nothing to counter it.

Halo NO Natal probably not

First place? is this a joke comment? LOL

I think Halo : Reach can boost the 360 in NA. I'm not sure about Natal yet, since we don't yet know the price.

Reach isnt a system seller. Sequels on the same console generally dont move much HW. Natal could be hit or miss, as of now its too early to tell imo. It really depends on software, marketing, and price.