You don't need an insane video card for boxing. I 10 boxed with less of a computer than you have specced. Here is the video card I used (or close to it) http://www.newegg.com/Product/Produc...-534-_-Product.

I am a bit confused about your hard drive choice. You have 2 drives in a RAID0 array. Are you going to run your OS from these? RAID0 provide a little speed but NO redundancy. If the array screws up (which it can be prone to) you lose everything on those drives. It basically will give you 1 - 2TB drive. What I have done is to run the OS and core programs on one drive and run WoW from your array. However, I also see that you have an SSD on order. This is where your WoW will run, right? It's generally a good idea to have your game and your OS on different drives.

My current setup features a small HDD for windows and other junk, two small 10k RPM drives in a RAID0 array. I have the luxury of having another machine with massive storage for music, pictures and videos.

Also, be sure to order a 3.5" to 2.5" mounting bracket for that SSD.