I was in my sister's editing department last fall, they were loaded with the newest imac's, they all seemed to love them. They did offer you the choise of windows or mac and didn't force you to use something you didn't want to work on. All of them strict photographers with pictures to back it all up. I would check out the screen shift like Silky say's before going to the mac store. They all want to make a penny.
Boofers