Which video editing programs are you going to use?
For video editing/encoding, I believe your CPU may be slightly overkill. I would opt for Phenom II X6 1100T (MSI 870A-G54/ Asus Crosshair IV Formula -- yikes), but if you prefer threading over core, I guess it'd be fine, though. But, if nothing else, I'd stick to Sandy Bridge, for now.
I personally would go for a better GPU: GTX 670, or something similar.
And yes, you should get a larger SSD (if you have the budget) -- otherwise, you're better off with an HDD instead. If I'm not mistaken, you need to have some free space left if you want to fully reap the benefits of an SSD, so it's no good if you filled the storage 80%+.