Wow, thank you everyone for continuing responses.
Hawsome, yes mittens are best for warmth... not so great for dexterity. I reckon I'm going to go with mittens for an outer layer. And my hands naturally close into fists in cold weather now, I've got them trained...
Anthony, that's a very good point, something I hadn't though of before. I'm not going to get a coat, partly because I can't afford it, and partly because sometimes I can be boiling under my normal layers and my fingers will still lose circulation. But you've given me an idea... I might try making some wrist warmers with a little pocket for small handwarmers, if I can find small enough handwarmers to be comfy. So thanks for that!
Alchemist, do you use the sticky thicky gloves? I've been having a poke at them in blacks myself and they seem OK. I'd need something under them I think, but they're definitely worth considering.
Topcat - yes, I think it's the mind that makes stuff work as well. Which is why I don't think it would work for me. Because I think I would have to believe it for it to work. However, I may well try it if there's anyone in my area, will PM thanks.
Burt, thanks for that link! They look pretty good.
Twelveboar, yep, got one of those.

It just seems silly and wasteful to use them for everyday...
Thanks Border Riever. And the veintain link's interesting... £12 a month though, for maybe six months of the year... that's the same as a really good pair of gloves!
Doc, thank you very much for all that! Being young with as far as I can tell no other symptoms, hopefully I only have primary Raynaud's. I think I shall definitely be going back to my doctor and discussing it...
Andy, thanks for reminding me. I'd completely forgotten where silk came from. D'oh. Any idea what make your silvery gloves are? I've been trying several searches but nothing has come up so far...