Relatively new Mac user here. I have a black MacBook, probably from 2007, with the 2 GHz Intel Core 2 Duo and 2 GB 667 MHz DDR2 SDRAM, running OS X 10.4.11. My hard drive has been having serious problems lately--trouble booting, losing files, etc. I took it into the Apple store and the tech there said I had at best 3 months left. He off the record advised me to buy a hard drive and install it myself, so that's what I'm trying to do. Here's my question: I've backed up my important files on an external HD. Since I'll be starting with a completely fresh hard drive, can I skip all the updating and jump straight to Lion as my new operating system? Should I go to Snow Leopard instead? I don't have much experience with software on the Mac, and don't want to mess anything up. And advice would be very much appreciated. Thanks!