In reply to ColinMartin:
Most of the stuff I have is getting on a bit so my brand advice probably wouldn't be a lot of use, but here goes.
I get on well with Rab VR softshells, but I'm told they cost a lot more than they did when I bought mine. I don't find much to choose between standard fleeces - any of the names would be good.
Montane & buffalo salopettes & trousers are the dogs when it is cold.
I just picked up some Montane Extreme mitts which look very good - similar to the buffalo ones but with a better palm material. I will see how they treat me in Scotland and Norway this year. Currently fairly cheap at go outdoors!
I have yet to find a good glove*, and have concluded that something fairly thin that will keep me just about functional plus mittens to throw on when it gets too cold works best. Extremities sticky windies with a thin liner underneath seem to work well but they get trashed alarmingly quickly.
For standard cold weather headwear I reckon you can't do much better than the mountain hardware powerstretch balaclavas.
Any shell that goes on over everything else, has enough pockets and allows you to move is as good as any other imho. I'm old fashioned and think that their design peaked with the Lowe Alpine Flash jacker in the late 90s/early 00s though
*as opposed to mitt.