Am seriously tempted by the Argos reduction from £999 to £699 on this TV. Having only had a 28" widescreen (and assorted smaller tellies) in the past this would be a fairly big investment for me. So, is this any good? I know "good" is a very subjective thing but am I going to be blown away by the size/picture or just impressed by the sheer size? Any known problems with this or previous models? Any help much appreciated.