dfs and folderredirection

guys,

am trying to find a decent tutorial that is explaning me how to install dfs and create group policy's for folder redirection. Cant find one that conbines both, anyone who can point me to the right direction?

Second ,when creating the namespace, should i create a namespace for every departmentfolder ? Or should i create a namespace for one general folder and put the department folder in the general  folder?

thanks in advance