jongeeone your best bet would be the panasonic 5 series 42" or the 43"pionner.prices range from dealer to dealer but your looking at £3300 for panny and £4200 for the pioneer.i have the series 4 clone toshiba and other than a bit of screen noise!,its wicked.most plasmas now should last as long as a normal tv(about 7 years)
There's no problem using a Sky digibox RGB output as long as you connect it through a converter box like the one made by JS Technology, and then to your plasma's VGA input. A cheaper alternative would be to use a "synchblaster" Scart cable as sold by Keene and others. Tuner boxes are made by Panasonic and Pioneer for their plasmas, but I think that they only have analogue tuners. Hope this helps.
The Fujitsu's are going to be available in the next couple of weeks and their consumer units towards the end of December. They have a new chipset which is improved from the last units which will reduce motion artifacts. I will be able to give you the new product codes on Monday.