You don't need Windows Server 2008 to operate webcams. Pretty much any Windows operating system can handle that. For Windows Server 2008 benefits and such, visit:
http://www.microsoft.com/windowsserver2008/en/us/default.aspx
Michael D. Alligood,
MCITP, MCTS, MCSA, MCDST, MCP, A+, Network+
The I.T. Classroom Blog
Start. Research. Plan. Perform. End. Test. Evaluate.