As we write our guide on Windows 7 we will keep educating you on features but if you want to change lot of settings quickly, Xdn is a good option to tweak windows 7 features like you want it. Right from UAC to taking ownership of other users files.
Xdn utility we had talked in terms of Vista and the same application can tweak your windows 7 also. Here are all the features of Windows 7 that can be tweaked.
Change UAC settings
Enable or Disable Hibernation
Removing Shortcut icons
Remove Send to and Add copy to, move to folder context menu
Disable / Enable ATI Catatlyst Controller
Take ownership of Other users files and folders
Make views stick
This will be a good start for you to tweak windows 7 and play with this tool. We are builiding our next tweaking guide for you which should come out soon. Till then keep playing with XDN