If I'm not mistaken, you should watch The Plan after the whole series. It basically fills some elements, as seen from the Cylons' point of view.
This set does contain the movie Pete so don't order it until you double check.Edit - Thanks for the info Sébastien. I ordered this set for my self too and had no idea of the watching order. Where does Razor fit into the mix?
Seriously though... I still give short lived series a chance. I have seen some great ones that is beyond me why they didn't make it.