I've just purchased a pair of Etymotic ER6i's from them - they also do the accessories at a reasonable price. I bought some replacement filters for my ER4P's from them.
I rate this company very highly indeed. I sent them a cheque on Tuesday and they came Thursday - a very pleasant surprise. Admittedly I have bought from them before so perhaps I'm still on their records.
I don't know if there's a way to find tips in Europe , but think also they arrive in Europe as import thing .. so ..
the best and fastest way could be get them from an Usa online store , price is low , there's few if no Vat on , shipping once you can choose it should be very low as well
I bought the tips on ebay (Idealsound). I think their prices are reasonable; you can save a lot on shipping when buying more items at the same time.
Great service, good communications and fast shipping. Works for me!