I'm running on window XP since windows 7 since theres alot of drivers don't support it!
You must be thinking of Vista. From what I have heard, pretty much anything you can plug into windows 7 and it will support it effortlessly. For example, One of my friend had a sound card that, since vista was released, was totally unsupported, not even recognized at all. He tryed it when he first got windows 7, it was immediately detected and installed. Also I read this year that some manufactures are going to fade out support for xp even though microsoft is officially supporting it until 2014.