My dad and I are building a HUGE addition to our house to be used as a dedicated home theater. The dimensions of the room are approximately 16 feet wide by 30 feet long. I'm trying to convince him to upgrade our speakers since we don't have more than 2 of any kind of speaker already in our house. Everywhere I look I see people stressing the importance of tonally matched speakers, even going as far as saying the exact same speaker should be used for every channel. So, exactly how important is it to have tonally matched speakers? Also, for a room the size of ours, how important is it to have large full range speakers all around, instead of satellites? Can anyone recommend some speakers that are not too expensive? Ideally I'd like to have 5 identical full range speakers, with 12-15 woofer(s) inside.