I've just bought a MacBook Pro and I don't like the keyboard layout. Also, the Carriage Return key is very thin and easy to miss. Detailed images of Apple keyboards that I can find seem to show that US layouts are very similar to Windows layouts. Since I will be doing a lot of software development, I need easy access to the full ASCII character set, so I don't mind forgoing the £ symbol if using the US layout will provide this. Also, I've read that the US layout has a "full size" CR key (with no cut-away). That would be a real boon.