I just got these through from Equestrian Clearance - they were £59.99 + P&P. They're really nice boots in brown leather and suede - here's the link:
I a, a 5.5 and ordered a 5 because I saw they come up big. They look great and fit my big calves well but they are WAY big, at least half a size big.
If anyone who is a 6 or 6.5 would like them you can have them for £50 + P&P. They are still in their original wrappings and have been tried on once.