For those of you interested, my 7200 arrived yesterday. Set it up (Basic with S- Video, awaiting component lead) with an old slide projector screen (awaiting Goo) and an old Limit DVD player (awaiting a Denon 2910). I was bowled over with the image approx 50" diagonal, really stunning. Watched Gladiator, The Reds, Golds and Blue were natural, No rainbows, darted my eyes about the screen much to my wifes concern (I thought best not to tell her about rainbows and see if she picks them up, but she only noticed my eyes rolling about in their sockets and put it down to excitement.)
Admitedly I'm not an expert, but I am over the moon, more than met my expectations and so I'm in for a Xmas treat!
Thanks again to all who advised.
Andy