Windows Versions

We currently have Windows XP on our computer. We had Windows 2000 on the last one and it worked very well. The one before that was Windows ME which we had a lot of problems with. I want my computer to work the way it is supposed to. We have family members with Vista on their computers but I really don't know much about it. I remember our first computer. It had Windows 98 and a huge hard drive and very fast processor. I should say, for the computers back then it was huge and fast. By the standards today it was very small and slow. Thank goodness for technology.