Let me say that your choices are all excellent, and are pretty much exactly what I would choose if I had your budget.
When you read the recommendations, please bear in mind that this is a desktop you are getting. This means you can upgrade everything later. 
The Samsung Evo is a great SSD, but the Corsair MX100 is slightly cheaper, and is also very good. I would also recommend 256Gb.
High-tech RAM is pretty unimportant. Of all the upgrades, nothing has a worse return on your investment than RAM speed. Just get 16GB, n1600MHz DDR3 from a good manufacturer and ignore the XTREME!!!1!! branding.
If you want to save a bit of money to spend elsewhere, you could look at AMD’s 290 or 290X. They are not as efficient as the 970, but close to its performance.
I would still recommend the aftermarket cooler, even though I do not recommend overclocking as a rule. Your PC is FAST. You don’t need to push it further.