Giving users the ability to set their own homepages

Any assistance will be greatly appreciated.

Your wish is granted. You've had that power all along. In other words, you can dictate the homepage to the users you want to, and simply not dictate the homepage to the users you don't want to force. Check out the Internet Explorer Maintenance policies in the Group Policy Editor. Then, for the folks whom you want to dictate a homepage, simply link the GPO to them, and, shazam! They'll get the homepage you dictate.