Mostly as a discussion/curiosity topic: which would be more optimal given my setup to increase FRAPS performance? The biggest limiting factor seems to be HDD write speed, but I am relatively unfamiliar with WRITE speeds of SSDs, as well as the write speed performance gain by running a raid 0 setup.
My FRAPS performance has been decent overall, but it can be frustrating when framerates drop below 30 when recording intense games. Obviously a SSD's biggest limiting factor in this application would be storage space, but assuming it were unlimited, would adding another caviar black in raid 0 perform better than a "recording" SSD?
Paid versions of FRAPS do compress on-the-fly. Without that, alot of data has to be written to your HDD. SSDs are not that suitable for sequential write; its hardly any higher than a HDD. A RAID0 of two to four HDDs would be best for this purpose.
You might also try a RAMdisk, though i'm unsure how long your movies can be - not very long i guess.