Trying to get a few design ideas together,

I'm working on a site design in latest Joomla that has a directory of our own Shoutcast radio channels.
Right now we are using a tabbed slider on the front end that links to modules, custom html modules.

Is there anything out there that can display now playing song info, and a buy track button?
Basically something that detects what song is playing or something then displays a buy button that links
to junodownload or other music affiliate.

I'm using yahoo web player at the moment, i like it but would much prefer if we could have something
built into the theme with a player at the bottom of the page and doesn't reload when browsing other pages.
I tried fullajax plugin for joomla but couldn't get some content working with it.

Thanks in advance