REINSTALLING YOUR OS: A STEP-BY-STEP GUIDE

Is your computer running slow?  Getting weird errors?  Trouble doing the simplest tasks?  Tried everything you can think of to fix the problem?  The simplest answer may be to start all over and re-install your OS.  Lifehacker has a great step-by-step guide, with software suggestions, to do just that.  From cloning to backup to re-install it's all here in an easy to follow guide. [Lifehacker]