The CPU and video card you have are fine for the price and will handle games on lower graphics settings fine, but don't expect wonders.
As far as the other parts, I have a few pointers you may want to take into account:
- That motherboard is very basic and old technology,therefore it doesn't give you native SATA III or USB 3.0 support. I recommend you replace it with a board that has at least a 970 chipset. This new board would likely be ATX which unfortunately will mean you will need to pick a new case.
- You would get slightly better performance if you replaced the single 4gb stick of RAM with a pair of 2gb sticks as this will then run in dual channel.
- The hard drive you have selected is a laptop size 2.5" drive, for a desktop you should get a 3.5" one.
- The Corsair CX power supplies are okay, but not great. You can get something like this that is much better quality for only a few Euro more: http://de.pcpartpicker.com/part/xfx-power-supply-p1450sx2b9
