yeah hence ssd will get you the wei to the highest rateing 7.2 or 7.5 above one day it will happen but ssd are super pricey
as the story goes a smaller one will just make your data transfer rate much much more faster then the normal 7200rpm drives if i was to get a ssd i would either get a 80 or 120 gb to keep the speed to full potential anything bigger would defeat the purpose