DM Magic,
The specs required for Windows 7 are drastically less than Windows Vista -- this means that Windows 7 will run on more systems than Windows Vista but will perform best on those that are pre-configured to run Windows Vista. Most would recommend Windows 7 and I would have to agree. Windows 7, over all, offers so much more to each user. To learn more, Microsoft does have a site with whitepapers, tutorials, walkthroughs and screen casts on all the “under the hood” features in Win 7. Check out the Springboard site for Windows 7 on TechNet here
Windows 7 RC | Support, Deployment, Resources
Jessica
Microsoft Windows Client Team