We did a quick reality check of etail availability on ATI's Radeon HD 5xx0 series and we found that if you are willing to spend some €399, you can get yourself Sapphire Radeon HD 5870, here. This card should be selling for €329 or less and its listed for €299 but the reality says it will cost you at least €399 plus shipping.

On another note, the Radeon HD 5850 is available here for €299 and it's some €100 euro more expensive then it was originally intended to be. Even the mighty Radeon HD 5970 is available for a saucy €617.90 here, which is definitely not that cheap. Keep in mind, however, this is the fastest card in the market.