IIS 7 Feature Delegation
Feature delegation is a method to delegate certain features within IIS to the non-admins or simply a dev team. For instance, on a developement box, if you do not want to control the error pages then you could delegate the module to the development team. However, error pages are not the only module that you can delegate. You can give control for a wide variety of modules depending on your environment and your planning.
Feature delegation is decided at the server level and the rules are followed at all the lower levels. IIS manager permissions (which I see as a sub-set to feature delegation) is given at Site and Application Level. This together, gives us, IIS admins, the much needed flexibility to give away the right priviliges to the concerned people.
Feature Delegation is present on both Windows Vista and Windows server 2008, but, IIS manager permissions is present only on Windows Server 2008.
The video below will give you a brief explaination of how that can be done. Have fun!
Let me know if you need more info...