Michael, first a warm welcome to IAP. It's a great place to be when it's too cold to venture into your shop:biggrin:
Several vendors in the UK are now starting to stock some of the 'better' kits. At first they were rediculously expensive but seem to becoming more comparible with the cost of importing them. If you only buy a few kits at a time, then as long as you don't go over the maximum amount ( I think it's ÂŁ38, but may have changed )then you shouldn't have to pay import duty. Of course, Parcel Force may still add the ÂŁ8 handling fee.
If you can afford to buy many kits at the same time, then it's still much cheaper to import than to buy locally.
Here are a few UK companies that I know of;
Axminster - basic kits plus one or two better ones
Turners Retreat - still a bit expensive but best range
UKPenKits - Haven't dealt with them yet
Rutlands - Limited range, none with good platings
Craft Supplies (UK) - Fair range, but mostly only 24k
All of them now sell mandrels and bushings
I think I have bought from all the USA companies and all offer great service.
However, the best of them (CSUSA- biggest range) can cost you. For some reason they seem to pack even a small amount of stuff in a big box, when it could easily have fitted in a flat rate box.

Now, when it hits the UK, it's too big for the Royal Mail ( postman)to handle and automatically gets handed to Parcel Force. They then always add their handling charge and frequently 'decide' that you need to pay duty on it too.

The other unfortunate snag with CSUSA is that they have yet (after years) to automate the shipping cost calculation for UK and you may have to wait a day or so to get an email with the actual cost.
Sorry for the long story, but hope it helps a little:biggrin:
BTW, I wouldn't mind a wee dram from that bonnie cog:wink: