Call of Duty 4: Modern Warfare for the Mac is available from the Apple store and many other retailers. (See links below)
You should buy either Call of Duty Black Ops, or Modern Warfare 1.
You buy them
Buy Call of Duty: Modern Warfare first; you'll beome more familiar with the characcters and the weapons used before you get the second one. Besides, if you don't get the first one, the plot of the second one won't make much sense, will it? You'll have no idea what happened before. Also, when this answer was written, Call of Duty: Modern Warfare 2 wasn't released, so you can hardly get it this instant. Get Call of Duty: Modern Warfare first, and save up for Call of Duty: Modern Warfare 2.
The Wii version of Call of duty 4 is Call of Duty Modern Warfare Reflex and was released on November 10 2009 2 years after the other Platforms yes you can but it is called call of duty mobilised i think
Ill have to say Atari
you BUY IT in stores if it isn't on PSN
As a bundle? No. Separately? Yes.
Buy it in the map pack
It comes with the game when you buy it new
its the best call of duty in the world buy it UPDATE not the best but buy it
Buy it.
In the NX Cash shop