For FRAPS, I use 2x1TB drives in RAID 0. I don't feel its currently worth it to use SSD for video when your talking about about video files that are 10-20+GB. RAID 0 will give you plenty of performance and the price is much more sane.
Granted this is looking at it from the budget of a private individual where I needed 1-2 TB to store all the FRAPS videos (recording 1920x1200@30FPS) and I didn't have a thousand dollars to buy SSD's for that. If you represent a company that is willing to spend that kind of money, then go for it!
However just realize that SSD's in RAID 0 currently cannot use TRIM, where as HDD's in RAID 0 can defrag themselves. And if your writing gig's of video, deleteing it, then writing of gig's of video over and over again I would think twice about not having TRIM available.
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