Hi all. I'd like to replace my aging Pace Sky Digibox, as I have heard other (more recent) models give better picture and faster navigation. There is quite a wide choice available from eBay, I would appreciate any advice on which one to go for. - Panasonic (DSB30 / DSB40 / DSB50) - Sony (VTX-S750U / Sony VTX-S760U) - Thomson - Grundig .... Thanks in advance.