:( i really don't know but right at the moment i'm really scared for the HDD, cuz it's stuttering and gives that scratch noise as well. :/
About the GPU, I don't think of getting a new one, if it is enough for me to work with Cinema 4D everything is going to be K, but if it's a REAL big problem then i'm gonna change it, but so then I'm still going to need more a card to do Motion Graphics than playing games, so it would be better if you prefered me not gaming GPUs but GPUs for 3d motion graphics. :)