I am looking at getting a Panasonic Plasma screen with the JS RGB to VGA converter box. I want to be able to connect several devices using RGB to the panel and have been looking into SCART switchboxes. Does anyone have any experience of using these? Are there any particular models to avoid or one particular unit that comes highly recommended? Most importantly how do they affect picture quality? There seems little point in getting one if it's going to ruin the picture quality. I'm not bothered about whether it's manual, automatic or remote switching, I just want the ability to connect 3 or 4 RGB devices to the plasma screen without having to unplug one lead from the JS converter box and plug another one in every time I want to change source.