I know this has nothing to do with macs but I'm still asking. I have a laptop PC which only supports 5400 rpm HDD that supports sata 2 data. I plan on upgrading it because it is getting slower. Should I get a 7200 rpm HDD or sata 2 SSD? How much faster will a sata 2 SSD will be compared to a 5200 and 7200 rpm HDD? I do not need capacity as this moment and speed and price is my piority.