Yo, So my 2009 MBP has been quite sluggish lately. Boot up time takes almost a minute and every time I close the lid, the screen always turns off and then back on with the apple logo lighting up for 10 seconds. Also, when playing music in iTunes on my MBP and turn the brightness of the screen all the way down, the screen lights up by itself once every 30 minutes or so. Furthermore, the 500GB Hard Drive on my current 09' MBP is the same hard drive that was on my 06' white MacBook. The HD was purchased in early 2008 I believe. I believe there isn't truly a need to do a complete erase and reinstall on Apple computers but would prefer this peace of mind, especially considering purchasing Lion when it first comes out. I'm not too confident how to go about it but figured it would go something like this:? I have an external HD, of which I would connect to my MBP and back up all my files, documents, movies, music, photos etc using Carbon Copy for Mac. At least, I believe this was the program that would allow me to then take out my 500GB HD in my MBP and swap it with the external HD and pop the external HD into my Mac and have my MBP start up like that. I'd do this with the intent of then securely erasing my 500GB HD and treating it as external HD using Disk Utility. After which, I'd put the 500GB HD back into my MBP and pop in the SL disk and do a complete reinstall. Is this method correct or too cumbersome? I'm eager to do this sooner, as in the next day or two but figure I could probably wait till Lion actually comes out. Any guidance, advice, tips...appreciated.