I also like and use Polk Audio speakers and you can get some excellent sales on their front tower speakers throughout the year. These sale prices make your purchase that much more cost effective. I feel its worth getting the front floorstanding right and left speakers with the matching center for the best sound and they can last a lifetime. But the SALE is always the key for best products at the best price. Wait for the sale....as its worth it. Polk also has great deals on Bookshelf speakers that can be used as surrounds. Put the savings into a quality Sub and you will end up with a better system. Your Receiver should be of equal or better quality to bring out the best sound.