All 3 will reach those numbers, rather easy actually.
The Wii is beyond a lock for 5m. 6m is even likely for the year. IMO, theres a good possibility that just this year, the Wii will outsell GC's entire lifetime.
The X360 is pretty much a lock for 600k by EOY. It has 209k to go, and is easily doing well enough to reach that. At this time last year, the X360 sold another 140k h/w units last year, and the X360 this year is just about 60k ahead of it, and growing. 600k is locked. 650k is likely.
The PS3 can easily get 2m too, but not a whole bunch more (by percentage). At 1m, and averaging 15k a week till early November, it should hit 1.3m or more, and should have a decent holiday. In Nov-Dec, it should sell fairly well. 500k is guarenteed, and could/should get more.
Back from the dead, I'm afraid.
