Ah, okay. No probs. For what you're talking about, unless you're only going to go out in cold, dry conditions, either a fleece and a waterproof jacket or something with a Primaloft fill, Rab and Mountain Equipment and, erm, Berghaus and Haglofs all do Primaloft or similar stuff.
If down gets wet, the surface tension of the water overcomes the ability of the down to loft and trap air so it collapses into a sort of wet porridge – I know this to be true thanks to a near death experience in the Andes. It's also a pig to clean.
Down is lighter and warmer than synthetics and packs smaller, but it's a lot less versatile, Primaloft and similar still work reasonably well when damp. Have a look at the Rab Belay Jacket and similar I reckon.
Rab's down stuff outsells their Primaloft by a way, but for UK use, the synthetic is a lot more practical. Not as sexy though…