Just to throw another one into the mix, I was in Blacks yesterday and their Quantum 500 was reduced from £95 to £75. This is a 3 season down bag, full length zip, a comfort rating down to -1 and an extreme rating of somthing like -17 I think. I picked one up a few months ago for £90 and I've been really pleased with it. The pack size seems pretty small and it has nice shoulder baffles to keep you snug. I used it for my first camping trip of the year a couple of weeks ago and was very toasty (in fact almost too toasty when I woke up), so if you sleep warm I think you could probably get a lot of use out of it in this country. For £75 I think it is a very good buy at the moment, so perhaps one to consider.