hi i'd like to upgrade the hd of my powerbook to a 100 or 120gb 5'400rpm drive. at the moment i have the standard 80gb 4'200rpm hd (TOSHIBA MK8025GAS). will i see a performance difference or is this only noticeable with a 7'200? the new seagate momentus 160gb look tempting… regards alexandre :: 17" 1.5ghz powerbook / 1.5gb / 80gb / X.4.3 ::