I decided to add a separate circuit for my computer and its electrical gadgets like printer and UPS, so I had a conduit run on the outside of the house and through the wall where the outlet was placed. I had a 4 gang outlet installed but it is on its own circuit and its own GFI at the main box. From that point I have all important things running and lesser appliances such as photocopier are on the normal room circuit. It was easy since it was an outside wall and directly above the main electrical box -- so if you are not on an outside wall or have a brick house instead of wood frame it would be more difficult.

It is just as easy to run 2 lines as one, so if you are doing it yourself run two separate wires that are rated at least for 20 AMP service. Connect each wire to its own outlet box, and might as well install 4 gang outlets if you run wire. You can run the wires yourself but have an electrician hook them into the box with their own separate circuit breakers -- and I would pop for the GFI breakers if you are running expensive hardware on those circuits. You can save yourself money by doing most of the work yourself but have a licensed electrician make the final hook up to the power in your box.

While you are at it, if you do not already have at least 200 amp service, buy a bigger box.