Ive had pretty terrible luck when it comes to just how waterproof a waterproof walking boot can be. I had some Brasher ones last time and they leaked. I was gutted.
Anyway i'm signed up for the CCC or Go Outdoors as they are now called newsletter and got a good deal through last week.
A pair of Karrimors with £40 off. I was planning to pick my food for the OMM up from there anyway so i checked them out and so far so good. Very comfortable boots. I'm a size 12 and often face the look of sheer horror on a sales assistants face when i ask if certain shoes or boots are available in my size but luckily these were. I'd definately reccomend them.
http://www.gooutdoors.co.uk/karrimor-ksb-tour-event-walking-boot-mens/COREBMBDK105 [nofollow] that's the ones there, not many sizes left i think they're selling quite well.
I'm taking them out on the Dark peak this weekend so i'll let you know how it goes!
Hope this is of some use to someone!