Boards of Canada will never cease to impress me. They've really made some good remixes. Why? by Good Friday is another good one. As well as Last Walk Around Mirror Lake by Boom Bip.
If you're a true BoC fan, you will know to listen to it all the way through.
Either that or you miss out on the musical progression that they are known for. The end is absolutely phenomenal.
http://www.youtube.com/watch?v=pKZxR6PpZJo
Check out the original by Beck as well, so you can hear the amount of work they put into it.

