I was in Denbigh Army Surplus the other day and they are selling new unissued Soldier 95 DPM Goretex Jackets for 25 and trousers without pockets for 25 and with pocket openings for 35 which seemed pretty good to me. I bought one of the jackets and trousers with pockets and took them out for a good soaking up on the hill and they performed really well in heavy rain, wet grass and bracken. These are unlined so fold up really small.
I asked the owner if he would give me a bit of a discount, so he kindly threw in a DPM jacket in good nick for free!