that motherboard is a ATI-Crossfire baord.... a Crossfire board is only compatable with 1x single Nvidia card... or 2x ATI cards crossfire enabled.
if you dont plan on use ATI Crossfire.. you should probably avoide the board. (Dont know if it may have Nvidia incompatability probs either). You may save money without it too.
I dont know of Euro pricess, but since you have a low budget, you might be much better off going with a AMD A64 setup. There no longer King of the hill, but thy are still good, and cheaper then Conroes..... especially if he plans on using the computer for gaming... a 7300XX card will not play any modern game without laggg... you need a miniume of a 7600GS or 7600GT.
heres some good general info on witch PSU Brands to stick with: