My room is 20x11x8 ft and I sit also about 8 ft from the TV. I have M80s and a VP180 and couldn't be happier. Sure, if I crank up the volume it's too loud but I don't have to listen to the max volume. If one day I'll have a bigger room I'll have no problem as well. Whatever you do, if you have the space, I would definitely recommend getting the VP180 over the VP150. Also, are you planning on getting a sub right away? If not, I would go with the M80s as we will be amazed with the amount of bass they have. Just as an example, yesterday, the wife was not home, so I watched Percy Jackson and the lightning thief. For once, I was able to watch a movie at higher volumes (-8db on my receiver) and let me tell you, even the couch was vibrating during the scene with the multi headed dragon.
