Building New PC

I desided to post a new topic concerning again computer hardware as i am about to build a new pc at a reasonable cost and a good performance.I give you a list of the harware im about to purchace considering that the main organ that will run is Rotterdam - Laurenskerk or equivalent.
-motherboard: Gigabyte x99-UD4 249euro
-cpu: Intel Core i7-5820K Box 387euro
or Intel Xeon E5-2609 v4 Box 360euro
-memory: G.Skill AEGIS 64GB DDR4- 2400MHz 254.5euro
-SSD/HDD: Kingston v300 480gb 116euro / Toshiba DT01ACA100 1TB 44.55euro
-Case: Phanteks Enthoo Pro 102.04euro
-Power: Corsair CX750 750W 82.59euro
-DVD: Samsung SH 224GB 12.02euro
The PC will run on Windows 7 and my audio interface is an external M-Audio
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TOTAL PRICE: 1219.7 euro or 1246.7 euro (depending on cpu)
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This is just an outcome of product research, im not a computer expert so if anyone could give me some advise on wheather im getting my job done with this hardware or i need to get deeper in my pockets, whould be realy helpfull.

I have some suggestions:

- Gigabyte motherboard is not supporting NVMe SSD's to it's full potential (only 10 Gb connection where most X99 boards have a 32 Gb connection). I would suggest an alternative that have a PCI-e 3.0 x4 (32 Gb/s) interface. They can be found for the same price (check MSI X99a Raider/SLI boards for instance). This is only for future updates.

- Take the i7-5820K: 6 cores at 3.3 (can easily be locked at 3.8 or 4.0 GHz with a 40 euro cooler) versus 8 at 1.7 GHz.
- SSD's: I personally dislike Kingston for SSD's. A similar product could be Crucial BX200 480 GB (about same price).
- Case: Nice (though large)!
- Power: 450W is more than enough. Even when overclocked, a system with an i7-5820K is not going to use much more than 180-200 W. Power supplies work best between 50-80% load. Cooler Master G450M is a very good option at a reasonable price.
- Cooler: you have not choosen one. The Scythe Fuma is an excellent choice.

Good luck with chosing!