Great: Songbird should have favorite song saver for shoutcast

I love songbird and the fact that its gaining such a huge gathering. I would love to see a feature built into songbird, or even made in a script that targets shoutcast and song tagging.

I listen to a lot of shoutcast and last.fm tracks, and last.fm has the built-in feature to allow you to buy the music through amazon/i-tunes that you "love".

I would love to find a plug-in or built in feature that would follow suit for shoutcast. Now I know that that is a function and an operating feature specific to last.fm, but I would even settle for a "thumb up, Thumb down" feature similar to Pandora so I can go back and buy the music that i've tagged as worthy of purchase for later.