In reply to Gazlynn:
> Getting a tent that will withstand the WORST of Scottish winter requires some serious consideration which I see you are doing and to be honest I would be impressed if 3 season tents would be consistently up for the job.
> Personally I would only look at 4 season tents although they are heavier and more expensive
> You have loads of time so my advice would be keep looking around for good deals or even on the for sale thread on here.
Some good advice there. For the OP, you really need to have a long think about what you're likely to be doing with this tent in order to get the one best suited. We all end up camping in the rain, so being able to cope with that is a given and for that reason, pitch 'as one' or flysheet-first models will be better than inner-first. We almost all end up camping in winds that can give us pause for thought about just how securely the pegs are in, and since it's your intention to pitch on the hills you may accidently end up experiencing stronger winds than you anticipate; this means that something that's robust with lots of pegging points and guylines will be better than something that's light and has sacrificed some pegging points to gain that lightness. We only sometimes end up camping in snow, or when a decent snowfall happens overnight, and so you need to think about how likely this is for you; some tents have a design that makes them more likely to collect and hold snow on the top than others, and this may colour your view about them.
So you need to have a serious think about exactly what sort of conditions you'll be out in; it it's *that* extreme, will you be on the hill or in the pub? Having done that, have a think about how far you're likely to be carrying this and what factors other than weight will play a part; packed size, for example, or whether you'll be doing that walk alone or with someone else who can share the burden.
Then there's the usual stuff germane to any tent purchase; how tall are you (how long does the tent need to be)? What's your height when sitting with your bum on the floor (what does the inner height of the tent have to be)? How often will the tent be used by two people (how wide does the tent have to be)? Plus the general points relating to tent design: geodesic tents are stronger but generally pitch inner-first; tunnel tents are lighter and properly pitched can be just about as robust as geodesics, but get a lot of that robustness from the way they're pitched which, in the UK in the hills, may well be less than ideal.
The pointers you get here and from forums such as outdoors magic will help, but you need to temper what people say with a dose of psychology; having paid their money, people are often keen to promote their choice as the best one. Having settled on a shortlist, and you're some way towards that, you'd get a nadge more insight from asking people putting forward a particular model what they don't like about it or would change rather than what they especially like.
For what it's worth, if I were after what you're looking for I'd rule out anything with 'lightweight' or similar in its name and anything with an extended porch and look for a pitch 'as one' design as they're easier to deal with in the wind when your only light is that from a headtorch, and then I'd use your other criteria (price, weight and inner size, packed size etc) to get to a shortlist.
T.