EDIT - oh, and I still keep up my membership from when I was in NZ, so I only get charged $50 as it's a renewal. I kinda feel bad about that actually, because they pay nearly that to post the merch out.
Just adding my experience - Ryos are happy to send to me in Scotland, so presumably they send to rUK as well. Just watch the customs guys - got a couple of shirts (for me and a Scottish mate I converted) and a t-shirt - ended up over the limit for VAT exemption, so got charged nearly £50 in customs charges and admin fees.
EDIT - oh, and I still keep up my membership from when I was in NZ, so I only get charged $50. I kinda feel bad about that actually, because they pay nearly that to post the merch out.