Are you ready for Windows Vista

Windows Vista Editions Overview
No matter how you use your PC—from home entertainment to business productivity—there's an edition of Windows Vista that's right for you. Use this comparison table to help you choose your edition.

Ultimate

Windows Vista Ultimate is the choice for those who want to have it all. Easily shift between the worlds of productivity and play with the most complete edition of Windows Vista. Ultimate provides the power, security, and mobility features needed for work, and all the entertainment features that you want for fun.
Learn more about Windows Vista Ultimate
Get it now at Windows Marketplace



Home Premium

Windows Vista Home Premium is the preferred edition for home desktop and mobile PCs. It provides a breakthrough design that brings your world into sharper focus while delivering the productivity, entertainment, and security you need from your PC at home or on the go.
Learn more about Windows Vista Home Premium
Get it now at Windows Marketplace




Home Basic


Windows Vista Home Basic is ideal for homes with basic computing needs like e-mail, browsing the Internet, and viewing photos. Easy to set up and maintain, it enables you to quickly find what you're looking for on your PC and the Internet, while providing a more secure environment to help protect you from an unpredictable world.
Learn more about Windows Vista Home Basic
Get it now at Windows Marketplace



Business


Windows Vista Business is the first edition of Windows designed specifically to meet the needs of small businesses. You'll spend less time on technology support-related issues—so you can spend more time making your business successful. Windows Vista Business is the definitive choice for your business today and tomorrow.
Learn more about Windows Vista Business
Get it now at Windows Marketplace



Enterprise
Designed to significantly lower IT costs and risks, Windows Vista Enterprise meets the needs of large, global organizations with complex IT infrastructures.
Learn more about Windows Vista Enterprise

Interactive Vista Presentation : http://www.seewindowsvista.com/

Windows Vista Home : Product Information

Get information about Windows Vista as it applies to IT pros, with these overviews of application compatibility, hardware requirements, networking, and reliability.

Application compatibility
Find out how to test your applications for compatibility with Windows Vista and where to go for additional help.

Hardware guidance
By using these guidelines to procure PC system hardware, you should be able to deploy systems that will upgrade to Windows Vista.

Networking
Get information on important networking enhancements in Windows Vista.

Reliability and performance
Explore the ways that you can minimize user disruptions and reduce the impact when disruptions occur.

Source : http://www.microsoft.com/windows/default.mspx