Cragchick - for the gorms MIA exped ...would recommend going old skool ...a pair of heavy wool Dachstein ! depending on how much you need to use your fingers for fiddly stuff - a pair of Merino (Icebreaker are good) liner gloves. If you are out for a long time and the weather is likely to crap out, a pair of waterproof shell mitts would also help.
For general running in the Scottish winter I like sealskinz - the ultragrip are good if you will also be on the bike at all !
Can really recommend the whole Park Run system. I finally did my first two (New Years Eve and New Years Day) and reckon they not only give you a fast run ...but motivation and feedback on progress especially if you are doing the same course time & time again.
Funny but after years of almost only hill running, I am enjoying how accessible the tarmac is rather than having a drive at either end of a run.
Wore Walsh for years ....then they seemed to have serious quality issues and got overtaken by Inov8. I have mudclaws and talons. The choice of which to wear tends to be based on the nature of the route ...muddy and wet the claws win hands down ....any amount of scree, rock or trail then the talons take over.
Personally, I would go with what fits best !
Issues with heel rub can be fixed by steaming the heel counter insert (obviously whilst still in the shoe) until the plastic goes soft then put the shoes on and go for a short run ...it cools moulded to the shape of your heel.