Polycom Communicator
One of <a href="http://reviews.zdnet.co.uk/software/internet/0,39024165,39241872,00.htm">Skype's</a> selling points is its high audio quality, paired with very efficient echo cancellation. On a decent pair of speakers, Skype-to-Skype calls can sound almost as good as a radio broadcast, which leaves notebook owners with tinny output somewhat at a disadvantage.