I might have a small chance to pick up a pair of Polk R30 floorstanding for 200 for a pair plus shipping(they are 399 at CC). If that doesn't work, i can get a pair of Wharfedale Valdus for probably around 300 shipped. But the other option is to get a pair of Cambridge soundworks Tower III Speakers for 280 a pair(they sent a 20 percent off coupon) or even cheaper if i get a refurb through ebay. So if i can't get the polks, what should i get? If i can get the polks for the price, is it worth the extra money for the others?