Building a desktop for video processing, what sort of specs to look for?

[Galaki]

UnknownFact said:
16GB Ram would do it.

But aren't Quadros too expensive for your budget?

You can SLI two 660s.

So, a dual GTX is better than a single Quadro?

I heard Quadro supposed to be great for video production. I know nothing about it, though.