Hi all, I wrote a really detailed question and submitted it but it didn't go through. So, here is a summary. I have an early 2009 17" mbp. It keeps getting slower. I have 75% of hd space left. I have done hard drive utiity checks etc etc. It is still slowing down and i have no idea why. It does that constant clicking thing by the way, I've read that some of you are experiencing the same thing. I brought it to Apple and the genius told me it was fine and, "if it poops out come back and say I told you so and we'll replace it" gotta love those guys My question is: If I replace the HD and install snow leopard without restoring all of my files from time machine, is it hypothetically like getting a new computer?