Quote - Two of your three questions aren't mac related, so you've sent away alot of people who could answer your questions. P7 is universal binary so it will work on your new system.

Well, I've posted questions here before, and past experience has taught me that a large proportion of people don't bother to read the questions properly, and miss the fact I'm on a Mac. They then start giving me advice that I could only follow if I were using a Windows PC, such as particular software recommendations that don't do a Mac version for example. So I thought it would be more helpful (to me) to flag up the fact I'm on a Mac, precisely to deter such people from posting. I want quality not quantity:) Thanks for setting my mind at rest as to my 3rd question!