Pro Edition when it came out, was an OS aimed at the business world, while Home Edition was aimed at reg home users.
I can't remember exactly what the difference is, it was mainly security. Only thing I really do recall, is the adminstrator account. On Home Edition, you have to reboot in safemode. Pro, you don't. Plus theres an Account manager in the 'MMC' (Microsoft Management Console) for the Pro Edition.
So, for you Home Edition should work just fine. It even has its own firewall. Just can't remember exactly what differs from the 2. And I feel too lazy to look it up.. :lol: