I am contemplating whether to have the SDi modification for my Arcam FMJ 27a DVD player. I know the Panasonic PW7/8 panels have an SDi module. Does anyone have experience of utilising the SDi module and whether the above upgrade is worth £350 of my valuable dosh? Is there a quantum leap between component (analogue) and SDi (digital)? Alternatively, I may 'trade-in' my FMJ 27a for a DV79 and utilise the HDMI interface.