Just wanted to add that I tend to agree with RGA that smaller upgrades while less costly are far less rewarding in the long run.I'm very familar with the B&W's but not with the Wharfdales.I like the B&W's at their price point but I'm not so sure they're going to give you a significant enough improvement over the Wharfdales for the hassle of swapping out the equipment.If you could save for reasonable yet good quality separate amp and pre-amp(Rotel is very hard to beat at their price points)not only will your existing Wharfdales sound better but so will anything you replace them with in the future.Enjoy your shopping as I always find that to be great fun.