Hey guys, I'm in the process of upgrading my speakers, and am having trouble deciding on the kind of surrounds. I will be building a dedicated theater wired for 7.1, but this won't be finished for about a year. In the mean time, I want to purchase a 5.1 set to put in my family / great room. It's a 20' x 30' with cathedral ceilings, and the seating area will be in the middle of the room facing a corner, so there are no walls close enough to mount dipoles. I've all but decided on Paradigm Studio 60s, CC-690, an SVS PB13-U, and either Studio 20s or ADP-590s for surrounds. My big question is, since I am planning to go from 5.1 to 7.1 eventually, would it make sense to get 20s for the surrounds now, and then in the theater add ADPs for surrounds and move the 20s to the back channels? Or is it better to have all ADPs for 7.1? Any feedback is appreciated!