Ok from an electrical point of view that's different. By national code all building wiring must have a single point ground. First you need to understand that neutral is a current carrying conductor and earth ground (3rd prong on the pc or outlet) is a non current carrying conductor but there for safety. Neutral and ground - electrically are the same point and there should only ever be one point where they connect.
Isolated grounds on a receptacle the other hand is a little better. Normally conduit is the 'earth ground' and tied directly to the 3rd prong. With Isolated ground you want to run a separate ground wire back to the single ground point - not to neutral.
Also make sure if you do decide to run isolated grounds that those grounds are not better than what exists. Your post made me look at my 'single point ground' and found my ground wire is quite corroded.
