Well frankly speaking after listening to that mx5021, sony or philips will suck. Look for sonodyne which is arnd 30K for a receiver + 5.1 set or the wharfedale moviestar thats arnd 30k for speakers and say another 15k for a yamaha receiver.
Edit: If you are interested in my floorstanders for the fronts (IMHO the most important part of an HT), lemme know. We can work out a deal.