We checked Europe's price search engines for HD3870 cards, hoping to find some of them in stock. Last week, we managed to find a couple in German stores, but the prices were far from acceptable, at 260 to 270 Euro.
The situation has improved, but just barely. A couple of stores are listing GeCube and PowerColor cards at some ugly prices. The cheapest one goes for €239 Euro, and we just can't say this is a good deal. As soon as they become available in numbers you should expect prices in the 190-210 Euro range.
You're much better off if you're looking for an HD3850 with 512MB of memory. You can get Sapphire's HD3850 512MB for €169 at komplett.de, and in Austria Ditech is listing GeCube cards for €169 too, here. Starting at €191, a couple of German retailers are offering Club3D's overclocked with non-reference heatpiped dual slot cooler here.