When you're playing backing music on your PC using the Zune player, there's a kinda hidden playback mode that I prefer. It shows the album art for your music library on the screen and bubbles up the art and playback information for the song that's currently playing.

If you want to check it out, when you are playing back music in the Zune player, click on the button that looks like an equalizer (a bunch of small vertical bars) in the lower right corner of the playback screen... it's just to the right of the button to skip to the next song. Once you do that, you'll get this alternative playback look.