Greetings, Since December last year I have owned a Domino30, bought from a supplier who contributes regularly on this forum. I must say it has never missed a beat in its short life and I am very pleased with the decision that I made. The picture quality is fantastic. However, as I am one of those upgrade type people I was wondering if it was possible get even a better picture. At the moment I am simply feeding it an interlaced signal from a DVD32R via Mark Grant component. I have no problems with this as said, but am curious as to the alternatives. The first is an external scalar. There are a couple of Lumagen's going cheap I have seen around, so my first thought was to include one of these. What do anyone think about the potential benefits of this !? My second thought was that with an HDMI upgrade possibility around the corner, to go for the upgrade and try something like an 868 with this HDMI. I wonder if this would give any noticeable improvements. I have seen a couple of posts touting favourible results with this. I think it was with the Domino20. All thoughts welcomed. And can someone also tell me briefly what SDI is please, and also with HDMI, does that mean this DVI thing is now old hat !!?? Or am I missing the point. Thanks and regards, Stephen.