Bought a Minolta Alpha 9. I was lucky no import tax was added, but I'd expect to be asked to paid import VAT when making any order. Note that when they are added you pay a fee of about £8 to Royal Mail, or £10 to Parcelforce, on top of the applicable tax. This makes items that only just go over the threshold much more expensive.
It has 2 marks in the viewfinder that look a little like oil spots. They're not that bothersome, but I'd rather the marks weren't there.
I've also used JAUCE which kind of acts like a middle man for Yahoo auctions Japan. My understanding is that it's not possible to use Japanese Yahoo Auctions from the UK. They buy it for you, then store and ship them. You can buy more than one item and have them ship them all at once, but after a certain amount of time they charge storage fees. It worked well when I used it, but the fees they charge do all add up.