With all The windows 7 hype going around I was thinking about downloading and installing the beta. First off, would I be able to keep Vista and my computer as it is intact or would windows 7 overwrite what I have going now? I guess what I'm really asking is if I don't like it could I go back to what i have now with no ill effects? Secondly, would I be able to chose which OS I use and when I use it? When I turn on the computer in the morning, would I be able to play with 7 for a while and then restart and get some work done with Vista? Lastly, does anyone know of any major problems with 7 (please leave out personal biases, I only want to know stuff that either will happen or is very likely to happen to my computer)?