I recommend all cyber-jutsu practitioners check out Pandora internet radio at www.pandora.com.
Pandora is free to use through your browser, though they have also released a fee-based version which strips out the advertisements and provides a native windows and/or Macintosh application. The paid service cost $36/year. Some simple math shows us that their premium music service would only end up costing $3/month. There are a bunch of other reasons to purchase the premium membership - but I'll leave that up to them to convince you with.
In any case - I just created my own radio station based upon Generation X to listen to. This is pretty neat stuff! :)