Mobo, CPU and RAM came in about an hour ago. I was not paying enough attention though, when it comes to te RAM. Instead of buying 2x2GB I bought one stick of 4GB. The performance difference should be negligible though, or at least it is not worth the hassle of paying about €20 extra for a trade-in with the shop (shipping back plus like €12 more for a dual-channel kit). So I will keep it as it is, I suppose. I will rebuild the PC tomorrow.