Very cheap Cabourn at Flannels: http://www.flannelsfashion.com/designers/men/nigel-cabourn/nigel-cabourn-shop-the-collection.aspx
Add up whatever 10% off coupon you can find + 20% VAT refund.
Thou' I'd add that my experience with them is THE WORST. Once sent me the wrong Storm Parka and once refused to ship a Surface jacket unless I paid extra shipping cost (I canceled the order).
I'm not seeing any outstanding deals. I've seen those prices already at other shops. With the extra 10% they're not bad, but no code for that at present from what I can see. They also charge a ridiculous 35 pounds delivery. They take VAT off of the delivery charge, but still.