I was pretty happy with Vista, especially after service pack 1. The I started using the beta of Win 7 and I noticed how slow Vista was for file copying and other stuff. When I started using Win 7 RC for stuff more than Vista, I knew I was gonna upgrade ASAP!
Karen, get yourself an external backup drive! You won't regret it
You can use LapLinks Windows 7 Upgrade Assistant to re-load all your software and settings! I went from Vista 32 bit to Win 7 64 bit and aside from a few programs (mostly games) everything has been working fine! All of my web links and email were accesable right after the move! (No, I don't work for Laplink, I just love the time I saved not having to install over 100 programs)