I'm tipping GT5 for between 8 and 11 million, but if I have to be more specific I'd say 10.6 million.
Final Fantasy will do 5.3 million on PS3 and 3.2 million on Xbox 360.
God of War deserves 5 million or so, but I'll go with 2.9 million by end of year, and 3.4 million lifetime sales.
On the hadware front, given no more price cuts, I reckon 15.6 million sales for PS3 and 12.8 million for Xbox 360.