I've been trying to make sense out of an assortment of products from Microsoft involving multiple computers and I'm getting lost. I have a home network of three machines running Windows 95 SE, Windows XP, and Vista. The later two machines have legal copies of Office 2003 Professional. Outlook is my mail server program. These machines are on separate floors, I'm the sole user, and they are often all on at the same time. The 95SE machine gets little use and if it has to be excluded to find my solution, it's alright. The other two, however, must be able to access my POP3 email and Outlook's Calendar, and Contact files. Ideally, I'd like the XP machine to retain the Office Suite with the elaborate filters and folders for email plus the calendar and all it's reminders and alarms but I need to have access to it from the Vista machine. This is not an enterprise, just a dream perhaps involving an elaborate network for a home system. I'm retired, have the time, and the interest to make one of these machines a server .but I'd be starting nearly from scratch on the learning curve. Can someone put me on a path to finding a way to get this accomplished in the most cost-effective way? I've read about Microsoft Exchange and SharePoint but they sound like they're for enterprises and probably bring enterprise-size costs... but I'm not sure.