hi, I am thinking seriously of buying a rear projection TV with a budget of £1500. I what to know who out of Toshiba and Sony is the best for this type of TV. Also is 100Hz really all that important. how much do you pay extra for a set with dolby digital included as that is not what I want, I already have a HI-FI system that can deal with that! If anyone can help me I'd be greateful. Cheers.