Living in the UK, I order from Amazon.co.uk all the time -- both from Amazon itself and from international (mostly US-based) resellers. I rarely have problems and when I do, I've always gotten them quickly resolved. (My fave US-based reseller on Amazon UK is "Caiman"; they've got very good service.) I also order to the UK from Amazon US from time to time and likewise have few problems. International purchasing and shipping is all pretty transparent these days.