Perhaps you have a small company with a 10 or fewer users.  You want a shared drive and private folders for your users.  You also want backup of your pc's.  While designed for the home, Windows Home Server has proven itself to be a real performer in the small business office.  Here are some of the features:

• Inexpensive - Can be purchased for a little as $500
• Public Shared Folder - Everyone has access
• Private Folders - Each user has a secure area to store information
• PC Backup Service - WHS can be setup to backup your local systems and restore the image in minutes
• Remote Access - Need to get to your data from another location?  No problem.  Open a browser and connect to the shared folders or to your computer and work as if you are sitting in the office.
• Works in a Domain as well as a workgroup
• Can be used to share printers

Windows Small Business Server 2003 and 2008

If you need to support up to 75 users and need full services such as Active Directory, EMail, Web Site, Shared Fax, Intranet Web Site and more, these are the systems for you.

These servers are just like the big boys with everything including SQL Server rolled in at an affordable price.  Depending upon the configuration, you can start for as little as $2,500 to purchase a professional grade server ready for installation.  Management software will make sure all your pc's are up to date with security and software updates from Microsoft.  Active Directory Services lets you manage your user and hardware resources efficiently.  Using the Exchange Store, you can have shared calendars in Outlook.