David, if you have your old PC to hand, if you go to the Microsoft website and click on their “buy windows 8 for ?24.99” – this doesn’t actually buy it but does download an assistant that first checks the PC and it’s programs for compatability with Windows 8. That way you might get an idea of your current portfolio.
I looked at upgrading from 7, but started finding reviews that said the user interface had gone all tablety, and desktop was hidden. So what Windows was originally good for (multi tasking) has been pushed aside in favour of the finger prodders. I’d love to know how you find it!
Email I’m afraid I’d heartily recommend Gmail, but obviously you need to create a Gmail account, or Outlook if you need a PC based solution. Neither give me problems or limitations.