Anyone have input on hard drives? I have a need to for the drive to be very fast and also hold up under heavy constant data crunching. I run charts and use live data feed all day and that seems to kill standard hard drives. Am thinking of using a SSD drive, but am not sure about speeds and the sizes throw me off. I see alot of 2.5 SSD's. Can you share what to look for in speed, size and how does that compare to my typical Western Digital Green 3.5 HD?