Are you sure you don't want to shop online you can get killer prices like this
hexacore, and these prices probably wouldn't be available in stores, unless of course there is a sale.
Also, everyone on techspot only recommends trustworthy websites, so there's no worry there.
The most powerful gaming card is still the radeon hd 5970, but if your looking for a decent gaming pc I suggest looking at gtx 560 or hd 6870
here's prices on both of them:
gtx 560
Radeon hd 6870
Motherboard:
asus m4a89gtd
case:
Antec 900 ultimate case
psu:
ocz 700watt
ram:
corsair 8gb
Hard drive:
Samsung f4 2tb
Optical drive: Do you want a blu-ray drive or burner?
Total for this build,without the optical drive/os system, and using the 6870 as the gpu, is around 734.76 euros, a little over budget but you get a very good gaming pc.
Blu-ray drive writer:
Pioneer bdr-205bk
OS:
windows 7
Adding these two in, the total is 964.76 euros, using the 150 euro windows 7 home premium, places you can cut down is, if you can find the os cheaper that would be a good thing, and if you don't want a blu-ray writer or reader, getting a dvd drive would be much cheaper, if you don't need 8gb ram cut down to 4gb though I think 8gb is necessary for most gaming pc's,people will recommend other motherboard's that are not as expensive, so just follow them on that, and if you want to go with a lower clock amd hexacore, that'll also reduce the price.