An interesting video comparing SSD, Hybrid, 10.000 rpm and 7.200 rmp harddisks.
I recently bought one of these Seagate Momentus XT drives and I’m looking forward to installing it, it looks like good value for money compared to SSD.
for more check here; http://www.seagate.com/www/en-us/products/laptops/laptop-hdd/