I just purchased a MacBook Pro. With no dedicated Home, End, Page Up, and Page Down buttons, I use fn + arrow keys. This means that I use the fn key frequently--certainly more often than the option key. However, these buttons are on opposite sides of the keyboard, which is inconvenient. I would like to know, is there any software which switches the fn and option keys? I would love to be able to use the fn key with my right hand. Any help would be appreciated.