Really nice build!!!! Every part there seems to be great. Better than mine.. lol also for the case I reccoment any NZXT or Corsair case. They always seem to have great quality and suit all your needs

Don't go for the 960. Its overpriced for the performance. Try getting a 970 instead. Or a R9 370?/R9 380 4GB

It helps to know your total budget so we can make some decent changes.

Don't bother paying for Windows 7. You can get the Windows 10 preview and get upgraded to the full copy in July.

I would swap for [ Register or Signin to view external links. ] power supply.

Swap the 960 for a R9 380/R9 280X. No point paying for the 960 when there are better options for the same price. A 970 is the best bang for buck card you can get.

I would go for a h100i cooler. If you can't spend that much, there are many decent air coolers such as the Hyper 212 EVO

For a case, I can recommend an NZXT H440. I use one of these and think it's a brilliant case.
If that's not quite your style a [ Register or Signin to view external links. ] is a pretty sweet case.