Funny did something similar with the most recent episodes. Have dubbed them the Naruto Shippuuden Redux. You can check them out on youtube by following these links here:

Naruto Shippuuden 40-41 Redux pt 1: http://www.youtube.com/watch?v=c-qQrCHMTJI
pt 2: http://www.youtube.com/watch?v=m84NrVYkG64
pt 3: http://www.youtube.com/watch?v=7QbApie351k