I bought an RGB SCART from AndyC the other night and the picture on my TV with it is great. My TV is a 1080p Samsung 40" and can't remember the resolution but it was one of the interlaced resolutions and was indeed flicker free and stable. Very clear.
If you can get your hands on certain Archimedes monitors (ones that came out with the Archi 3000), they can do 15hz natively so would act nicely as a proper monitor and they are pretty cheap. There are also some NEC Multisync monitors (I think it is the NEC 3D) that do the magical 15hz but I think they are rarer.
