How big is the TV, how big the room where the speakers going, do you need surround sound or just stereo channels? How much are you willing to spend? Also anyone in your house technical enough install it yourselves?
Niro Nakamichi is something I have in mind, less wirings and easy to install than most Surround System. http://www.niro1.com/
If you have an old equalizer use with this Z2300 I found that raising the sub by 2 feet or more (depending on your lestening) is perfect if you have wood or none carpeted concrete flooring and 1-2 feet away from any wall works best, using a marble top works great but glass or MDF put on top of phone books works too.