If you are doing video I suggest you get external storage. If you have an eSata port you may want to get an external Sata drive or docking station with eSata interface so you can do fast processing. If not you may want to consider a USB 3.0 card if you have a slot free. SSD are getting cheap and are great for video muxing. I have one in a USB 3.0 dock. I copy on the video and use the SSD for both source and destination since there's no thrashing. Also I purchased a couple of TB WD black Sata III before the price gouge. They are slowly coming down in price. I try to keep my system partition at 70% free space. Everything runs smoother. Defrags are very fast. You pay a penalty for operating in a phone booth.
I don't use Sony Vegas. All my video I do with free software or donation-ware. But I'm not into authoring with effects etc.. It's nothing against those programs. It's just not my interest.
