That looks VERY much like my beloved Leopold. I suspect that it's the same manufacturer, and if so, then this is going to become my new recommendation, rather than trying to ship a british keyboard over to the US.
(No blank keycaps yet, but hey; I'm very much the minority in preferring that.)
I'm going to do a little more research, but if this IS a Leopold OEM, then it's a very, VERY well-put together keyboard.
Side note... what's up with the sudden rise of MX Greens? I hadn't heard anything about them until a few months ago, and now they're getting increasingly popular.
EDIT: Looks like it is a Leopold OEM. I might buy a couple of these as spares, but then again... they're built like tanks, so I might not need to.
EDIT again: As for the windows / caps lock keys, just use autohotkey. Thirty seconds and you don't have to worry about it again.