I know that I'm a little late to hop onto the train for this one...but I still thought I would talk about it incase there are people who haven't heard of it yet.
pandora.com is spectacular new way of finding new music. Just enter any artist (or several) and it creates a new radio station that plays that artist and other artists just like it. The results are extremely accurate you can find a lot of great new stuff. If you don't like a suggested song, just hit "thumbs down" and it helps narrow the results even more.
Best part...it's all completely free!
Check it out!
Also, if you have an iPhone, there is a spectacular application for it that will even play through you iPhone speakers.