pointing iTunes “now playing” links to either Amazon or iTunes

In case the title doesn’t sum it up, I would like for the iTunes tracks I include with weblog entries (using KungTunes or ecto) to point interested parties at the relevant tracks on Amazon or the iTunes music store. Extra credit if the relevant affiliate links can be inserted in the Amazon links (like the following example).

now playing: Black And White from the album Anthology [1968-1985] (Disc 2) by Todd Rundgren