One of the big frustrations if you're a PC guru who is called upon to help diagnose PC problems remotely is not being able to see the desktop of the computer you're working on. I received two calls to help with MS Word issues just this weekend alone. RemotePC (http://www.remotepc.com) offers secure Remote Access to windows PCs from anywhere via any internet connection. It is easy to use, fast and less expensive that than solutions like gotomypc.com.
From your computer you can view the desktop of the RemotePC enabled computer and using the software's view the remote desktop, help diagnose software issues, and read emails and edit documents as though you are directly working on that remote computer.