I currently have a 120 gb ssd with a 500gb hhd. I was looking into getting a 500gb ssd and just using that but I needed to think about a few things first. 1. could i get like a 250gb ssd and raid zero with the current 120gb ssd that i am using. It has windows and a few games on it with some office work. 2. If I got a new ssd what would happen to my current version of windows. I have windows 7 but no disk or anything like that. Thanks for any responses.