the cheap SSD are really bad at performance, and the high performance ones require you to donate a kidney. just google it for tons of information. two velocirapters in raid 0 are faster than any ssd. And two 15k drives in raid 0 would make your SSD look like a floppy, of course this isnt practical for a laptop, although if you are a speed freak and dont care about battery usage, newegg does have some laptops with two 7200 rpm drives that are in raid 0