I have an ASUS K43S. Am not sure which model is it exactly but looking at a few of models from the series, I believe they all have SATA1 (3GBps). So am wondering if a SSD upgrade will be worth it? Most importantly, it should work. At least with the older SSD's I think SATA1 or 2 doesn't make a difference? Crucial M4 128GB OK?