so, I have been to the local running shop and asked a few questions, they only have around 6 different off road shoes and most of those are the inov8 range.
I was told that the gait thing doesn't generally get taken into account and that as off road shoes take on uneven surfaces and rocks and the like then they aren't looked at in the same way.
I was shown the Mudroc 290 and the Mizuno Wave Harrier, (any thoughts on these) apparently the wave ones are ideal for first getting into off road and have a little cushioning unlike most other off road shoes????
I picked up an Inov-8 leaflet so I'll take a look at that too.
so, Its either order a few different ones on the net and send back what I do not want or hope I can get to the nearest Sweatshop/Start fitness before the sales end.
This seems even harder than picking road shoes, at least the sales assistant will do your gait and then tell you which ones

Thanks for your info everyone! I will have a look on net tonight and check out the GTS ASR, the Cascadia may not be so good for me as I want to get out on the snow and ice.
Anymore help is greatly appreciated, what are the Salomon range like?