I saw a commercial for Windows 7 where, if you want to work in two windows at once, you can drag each off the side of the screen and they will automatically resize the windows to take up one half of the screen each. I do this manually all the time in Vista, but would love to know if it's possible to install something on my computer that would just give me that feature. It would save me some serious time!

I haven't a clue whether you can do it in Vista. I like the fact that I can do it just by using the windows key and then hitting left or right, and then selecting the second window and doing the other side. Also the fact that we can make the window the full height of the screen just by nudging it to the top-and look up the windows shake-very cool!

You can do these things in Vista or in Windows 7? I have Vista and just tried it, and nothing cool happened! I really need to get to know more about what my computer can do...

These are Windows 7 features, not Vista I'm afraid. I didn't get along with Vista when I tried it so I haven't got a clue what Vista is capable of doing, sorry.