Your intended case has insufficient cooling
Ok for reasons unknown to me we seem to have that store's IP blocked or misdirected.
Change your case to the Thermaltake V3
Given your selection the Corsair TX650 will be fine if a bit overkill.
It would be better to get the i5 2500K and a Z68 board if the budget will allow. Just to keep the overclocking option for later.
ASRock Z68 Pro3 Gen3 would be your least expensive option there.
Video editing does not require so strong a GPU. This 6670 will be just fine and save you enough for the mentioned upgradeshttp://www.tecstore.net/Produkt/453991/Club3D-Radeon-HD-6670-1GB-DVI|HDMI-PCI-EX,-retail
(I think r-click and open in a new page/tab will make the link work)