If you're not already using Pandora, you really should check it out. It is a great way to listen to new music that still falls within your normal range of tastes. Just give it some songs or artists that you like as "seeds", and then give a thumbs up or down to songs as they play. You'll end up with a radio station that plays music you like all of the time. The most amazing part about it is that it's free. They have a few audio ads (I haven't heard one in a week or two) and the usual banner ads, which aren't at all intrusive if you keep the browser minimized.
My friend Dave recently posted about an Adobe Air client for Pandora radio, which I just downloaded today & is working fine. The only real advantage to it is that it minimizes to the system tray instead of to the taskbar in Windows. This is helpful if you use multiple virtual desktops (I use VirtualWin) and want to access it from any desktop.
My Pandora station is mostly Indie music. Check it out if you like that sort of thing...
