Since you are Dutch :D
I would advice you to take a look at
www.tweakers.net
I always like asus MOBO's. But in some tests ppl advice other faster mobo's....
Just make sure it's a dual AMD mobo :D
With dual GFX card, you mean you have two DVI out ports right? Many to choose from...Also look at
www.tweakers.net for reviews/tests and prices...
Good luck