How do I enforce consistent application (ie Itunes) settings across my home domain?

How do I enforce consistent application (ie Itunes) settings across my home domain?

I have recently set up a Windows 2008 server (R1) on my home network. I'm hoping to use this to eventually fill the complete void of networking/AD knowledge and as a backup to my programming experience. I've created a set of exercises that I hope will give me a tour of what is possible.