I was looking for something like this before. Glad that my friend from Israel shared to me this wonderful application. It's teamviewer. You can do a lot of thing with teamviewer. You can remotely control your friends computer, repair it even when you're at home. You can easily transfer files from one computer from any where in the world.
Both computers must have installed the same application. The other unit will connect to the other unit through the given ID and password. It's easy to use actually. It has a user friendly interface even newbies can easily understand.
One thing.. Teamviewer is free! Visit site http://www.teamviewer.com/
