What computer should I get to replace my old Windows XP machine?

Maria wants to get a Mac because of its security benefits, but she needs to use Microsoft Office. Leo says that Mac supports Office, and although it's more expensive, a quality PC will cost about the same anyway. Another idea is the Google Chromebook, with costs ranging from about $200 to $500. She can then use Google Docs which is just as good as Microsoft Office and she wouldn't have to buy it. A great choice, but it's a very simple computer.

The lowest cost Mac is the Mac Mini, or the MacBook Air. Leo says not to just buy a Mac because of security. She could run Windows securely just by running as a limited user.