TeamViewer for remote support
Last week Mick introduced me to TeamViewer and I found it remarkably easy to use.
The client doesn't have to install any software just download the client version and you are good to go. It also includes a nice file transfer option we used to rapidly transfer some large files. TemViewer also supports a presentation mode. Haven't tried it yet but from what I read you can use it to do remote presentations. I don't know if this includes sound we just used Skype for sound and that worked just fine.