You might wanna go for Windows 7 Pro, if you want to increase your RAM amount someday
My Fractal Design towercase stores 8 disks and comes with 2 120mm fans.
With the Scythe mugen rev b2 cpu cooler and all fans connected to the Asus mobo I overclocked to 4.4 GHz with the Asus, 1 button OC in the Efi bios. Works great and silent.
I can think of two pretty good possibilities for a luggable (mid or larger) case with a handle, and I'm sure there are others out there as well (Google LAN party):
Thermaltake V5 Black Edition Mid-tower Gaming Case (has nice full handle)
Any mid or full tower case + Sunbeam LAN Party Bag (includes strong straps that go around case to carry any case and keyboard using backpack style straps, shoulder strap, or a handle)
Don't scrimp on cooling, even if you do not plan on overclocking; look for a dual fan heat pipe style that will fit with whatever case you do choose. Good cooling will keep your rendering reliable and will allow for the 2600k to "turbo" (speed itself up) more effectively.
Now, regarding your component list, it looks just great! Don't forget a 850 watt p/s from a solid manufacturer. Also, skip the Corsair 600T; I brought one home I liked the design so well, then returned it when I realized the fans were not up there with the best fans and the typical high-quality replacement fans (Scythe Gentle Typhoon, etc.) do not fit without starting to drill holes, etc.