I'm considering migrating our shared web hosting environment from a workgroup based environment to a domain environment. Right now all machines are basically running IIS + .net 1.1 or 2.0 or PHP5. FTP is done using windows ftp and Local System Accounts are being used for FTP users. Just wondering if anyone has done this in an environment with 4 or more machines and MSSQL running SQL server auth. A quick run down of the processes you went through along with any tips, horror stories, or advice on security tweaks would be appreciated.