If you are one of the many trying out the Windows 7 beta, you may be interested in downloading SetteMaster as a one stop shop for common performance tweaks.
It isn't much, but it will save time for novices not accustomed to poking around in the registry. With that in mind, you may want to check out the guide on the project page so that you are sure about what each of these tweaks actually does. SetteMaxer is a free download, but like the OS itself, it is still in the beta stage so there may be a bug or two in there. Either way, it is a stand-alone file and can be deleted if necessary. [SetteMaxter via Lifehacker]