In reply to Martin not maisie: Joking apart, there are a lot of down jackets on sportpursuit.com currently. I'd obviously be delighted if you signed up via this link:
http://www.sportpursuit.com/join/Ben_Brockway_75946
'Cos that way I get five quid in my account if you order something
They have Yeti, Berghaus, Arcteryx, Mountain Hardware, Sherpa, Jack Wolfskin, Izas, Columbia and Marmot down jackets for 50-60% off RRP; which means the Arcteryx Thorium is 80 not 200, for instance.
They are hiding in the "Men's Hiking Jackets" section; personally I think it's worth deciding if you want the all enveloping 'expedition' jacket which you can only comfortably stand still in vs a thin 'pullover' type that is way more practical but not quite so solid. I melt fairly rapidly in proper down jackets so am quite biased!
Happy hunting
cheers
b