Well, the prices won't be as low as in the States, but
Overclockers UK ship within the EU -- shipping options are either
Royal Mail International Priority Signed (£14.75 / ~ 21 Euro) or
Parcelforce Euro 48 (£41.00 / ~ 59 Euro).
I've been using them for most of my pc hardware for the past few years and they have a pretty good reputation, as well as a very comprehensive product range, tailored to the enthusiast and performance user. They seem to get large amounts of new items in stock and will generally only make items available for pre-order once they have a confirmed delivery shipment.
Their prices are generally quite competitive relative to other UK prices and they tend to be updated/lowered fairly regularly, although on the whole, all products have quite a high premium compared to typical US prices. OcUK apparently also get UK priority allocation for specific product lines, such as the latest GPU's, SLI motherboards, due to the site's popularity with enthusiasts and overclockers.
Their forums are very active and generally a good resource, although some of the rules and enforcement can be a bit draconian,[Rant ON] i.e. I couldn't post a recommendation such as this there, unless it was of products that they stocked -- you can't mention any direct or indirect competitors at all, which while I can understand to a degree from a business perspective, I would think that ultimately any lost business due to forum users going elsewhere for a specific part would be fairly negligable (given the continued huge growth that OcUK has experienced over the last few years) and recouped through a wider loyalty, encouraged by a more liberated forum community.[Rant OFF] One of the things that I like about communities/forums like
Beyond3D that don't have a vested financial interest in a particular product, is that users can point out different products/deals to others and talk about pretty much anything (within reason) without recrimination in a "reasonable" and proportionate atmosphere.
BrynS