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.aspx?Item=N82E16820148363

The 950W Corsair TX950 is more than you need. A 850W TX850 would be more than enough.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139022

A lot of people are getting their 2600K's overclocked to 4.5GHz and above without to much work.  I would recommend a better cooler than the H70.  The Thermalright Silver Arrow and the Noctua NH-D14 are air coolers and they both out perform the H70 and any other air coolers on the market.  The only way to get better cooling than these two is to go to a custom water loop.  Considering how tall your heat spreaders are on the ram you want the D14 would probably be the better choice since it is easier to move the fan up so it will clear the heat spreaders on the ram.
http://www.thermalright.com/products/index.php?act=data&cat_id=27&id=96
http://www.noctua.at/main.php?show=productview&products_id=34&lng=en

Unless space is a problem I would get a full tower case, it will have better cooling.
The HAF-932 is a great case
http://www.newegg.com/Product/Product.aspx?Item=N82E16811119160
and so is the HAF-X
http://www.newegg.com/Product/Product.aspx?Item=N82E16811119225

The more air that the case moves in and out will allow for a higher overclock while keeping your load temps down as much as possible.  I had a HAF-932 and have a HAF-X now and like them both.  I do like the looks of the HAF-X better though.

Get this case

http://www.newegg.com/Product/Product.aspx?Item=N82E16811352006

or

http://www.newegg.com/Product/Product.aspx?Item=N82E16811352005

Both are amazing. As far as I know, until recently they've been hard to find in the US. In OZ, lots of people swear by them.