Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 2_1 like Mac OS X; en-us) AppleWebKit/525.18.1 (KHTML, like Gecko) Version/3.1.1 Mobile/5F136 Safari/525.20) I am interested in a 500 gb drive and not sure what to buy and where to get the best price. I noticed samsung had 5400 rpm 500 gb models. Does that mean I will have the same battery life I am getting now? Or is a 7400 lower capacity a better upgrade? I am concerned about battery life, same quiet/vibration free operation I have now. Read some reviews that the faster rpm increases vibration and reduces battery. I assume the slower 500 gb might be the right way to go. Also, what is the best/easiest method to install the OS and create an image of my cuurent programs/files. Never did this before. Usually just use external drive, but would like to have my entire movie collection without carrying more stuff. Do I need an enclosure or can I use my existing external drive? I have a 500gb simpletech mini external drive. Can I crack this open and put this drive in the notebook? Out of all the things I know about electronics, I am slightly Ricky Retardo about this subject since I never did this before.