A good friend of mine recently revealed to me that he's released a beta to the public of a neat piece of software. Jamcast allows the user to stream their digital audio across their network to devices with built in support like Playstation 3, XBox 360. I can't do the description justice, so swing over to his site and read about it. Sounds like wicked code. Even better is, it's entirely built with a .NET foundation!
http://www.sdstechnologies.com/