The case is interesting, but with your power consumption, I wouldn't recommend the included power supply.
I would go with
http://www.newegg.com/Product/Produc...nufactory=1306 for the hard drive. 16 mb cache will be better, especially on that big of a drive. And are you stripping or mirroring your drives?
I would go with mushkin memory over corsair, but that's more of a preference thing. I prefer mushkin, largely because they're about a 15 minute drive from where I live.
I would go with a better graphics card, but if your only doing video editing it should be fine.