Having read a number of positive reviews, including the stellar one in What Hi-Fi, I pretty much had my heart set on getting a STR-DH810 to build my first proper home theatre system around. However, while browsing around for the best price, I have noticed that the new version, STR-DH820 is now out as well. Has anyone had a chance to try it and what were the impressions? Is it worth the extra £70?