The plugs on a 1.8" SSD are not the same as the plugs on a 2.5" SSD and the plugs on a 2.5" SSD are the same as the plugs on a standard SATA mechanical hard drive, so instead of the Crucial 256GB 1.8" SSD get the Crucial 256GB 2.5" SSD and then all your cables will work.
http://www.newegg.com/Product/Product.a ... 6820148363
The 950W Corsair TX950 is more than you need. A 850W TX850 would be more than enough.
http://www.newegg.com/Product/Product.a ... 6817139022
A lot of people are getting their 2600K's overclocked to 4.5GHz and above without to much work.