Help me choose a PC to buy

Hey,
I want to buy new PC only, specially for 3D Designing and also some gaming ofcourse, but mostly for good rendering and such its the important part for me.

I found that here for now : http://www.amazon.de/Ultra-Gaming-PC-Computer-4790K-4x4-4/dp/B00S57EQAU%3Fpsc%3D1%26SubscriptionId%3DAKIAI62SSPLIHX7AR6PA%26tag%3Dgpuboss-de-3-21%26linkCode%3Dxm2%26camp%3D2025%26creative%3D165953%26creativeASIN%3DB00S57EQAU#productDetails

What do u think?

That PC is very good and will fullfill your demands easily. I recommend buying the PC in separate parts and building it yourself to save some money, you can easily shave off like €100-200.

That is one hell of a computer

Okay so you want a pc for gaming and 3d design.
If you're gonna use cinema 4d/3ds max/maya. I'd recommend
a gtx 780 Ti or even a 780, over a GTX 970 simply because of
the cuda core amout. GTX 970 is low on specs but performs better
in games than the 780 Ti because nvidia did some software trick
to the way it renders the picture.. but raw power is what you
need here, not some tricks that only help games. a 780 Ti is
almost double the processing power of a gtx 970 and is best
suited for rendering. about the cpu i can't really tell you how much
of a future proof that one is, if i were you i'd be looking at a
5820k and a cheap 2011 v3 mobo, and ofc a goodass cooler
like noctua nh-d15 so that you can overclock the hell out of the cpu.