Well this is just my opninion. Trash all the rear speakers or at least trash on set of the rears. Get you some components for the front. Get you a sub. If you need to keep one of the rear sets then you'll need a four channel amp to run the four front speakers on four channels or you could use a four channel amp to run the front four on two channels and the sub bridged on the the two channels that are left. If you go with four channels for the front then you'll need another amp (2channel-mono) for a sub. As far as the surround sound goes there are a few topics about that already. Read up on them and get as much info out of them as you can and then ask questions on what you don't understand. You have some questions that are pretty simple to answer, but I think you need to read up so you have a better idea of what direction you want to go. That way you can ask more specific questions.