My company has 3 websites in shared hosting. We need to host them in house. We currently have a Windows Server 2003 Business edition which we use as a file server and mail exchange server. we have commercial cable with a static ip, a sonic wall and a switch installed. Can we use the current server as a web server as well and is that secure? or is it better to get a new box with Windows Server 2003 Web edition and SQL server Web Edition?
For our sites, we use .NET and SQL.