The items looks fine.
Except the CPU. My experience tells me that AMD CPUs are faster than Intel CPUs. But as long as you run one task at a time. When it comes to running multi programs at the same time, You better forget AMD.
If you change the CPU to Intel, Then you will have to change your motherboard accordingly.
I can't tell anything about Gigabyte motherboards since I've only worked with Intel, Asus and MSI.
If you had like 50 more euro to spend, You could get another 500 GB HDD, Then set RAID 0 with your previous one. Our data world seems to be growing so fast, So I don't think you will regret having more disk space.
