That looks great. I just got a focus as a commuter and miss my heated seats from my Jeep. I also saw on Ebay that they have a kit with set coolers in it too. I think I'm going to install that kit instead. I don't need the passenger seat set up since 99% of the time its just going to be me going to work.
http://www.youtube.com/watch?v=RCV9YQ2W5fg