I think your Wii and PS3 predictions are too low..
The Wii will likely surpass 61 million by the end of the year. Nintendo have really upped production and demand hasn't slowed. When you think about the appeal of the Wii and sales of Gamecube games, SSBB and Mario Kart Wii will be perfect fits and greatly increase sales of the system.
PS3 will probably finish the year at about 32 million. Blu-ray is clearly winning the format war and people seem to really be looking forward to the new Metal Gear game... GTA3 will probably move a few systems, even though the game will probably sell better on Xbox360.
Xbox 360 and handheld sales are probably right.







