OK so i have taken on people's advice and purchased a scart video lead from amigakit which cost £21 for a 4.8m lead (too long i know but the 1.5m alternative is slightly too short)
So i don't think there is any improvement compared to my previous scart (gold plated) composite lead.
With my new lead from amigakit everything seems more pixelated.
My tv is a Samsung 8 series 40" LED tv - maybe it is too advanced for this lead from amigakit (The TV cost me £1300 2 years ago! :afro:) I thought these leads were optimised for modern tv's.
Is there some option i need to change on my 1200/tv to give a better picture with this lead otherwise i may aswell go back to my old scart composite as it gives a less pixelated picture 
Lol, more pixelated IS better quality

the aliasing and blending you get from the poor quality signal on a crapy CRT is actually quite pleasing... I was horrified how bad my old games look on a good quality monitor when compared with a crappy old 15" TV