I'm looking to buy an SSD for my new notebook, and I'm looking at 64/60GB models since they're cheaper and I don't need storage on the boot drive anyway. I'm particularly looking at the Samsung 830 and Intel 520 since those seem to be the fastest, but I can't really seem to tell by numbers if the 520 is really worth the $40 premium in price. Also, are the 6xGB drives really that much slower? If so, would it be better to just jump to 128 for the speed?