Wemfan- If you are having trouble w dialog, I would strongly recommend a center channel. A used NHT center channel speaker from their 1 series would fit very nicely and would match tonally w superzeros or super 1s that are almost always available on ebay. Or the new NHT Absolute zeros for mains with a new NHT absolute center. Add a sub and you have a very nice system that takes up little more space than those HT in a box deals but is way better.
Some amplifier questions
I plan to set up a sound system for my bedroom. The room is 16'x14'. I have a 65" Panasonic TV at the 14' end of the room. I want to have a center, sub and two front speakers. Should I be looking for a 3 channel amp or will a 5 channel work fine even though I won't be using all 5 channels? The system will be for 90% television and 10% music. What should I be looking for in a receiver? How many watts, features? What price range? The room is so small I can't listen to music very loudly but I don't want to be under powered. Some amp suggestions would be helpful. Thanks.