Hello ! My name is Vista

For you DCoTers who are still trying to get a handle on what exactly Vista is all about (count me in that group), Blogcritics has a good article called Vista - What You Need To Know.
With four versions (or five, depending on where you live… or six, depending on where you work), it can be pretty difficult to know exactly what to purchase and how to even go about making that decision. Ashleigh Charlesworth helps with a very high level overview of what Vista is and some of the different versions available.
Microsoft also has a basic comparison of the four main versions of Vista.
Here are some direct links to each of the versions on Microsoft’s website:
Windows Vista Business
Windows Vista Enterprise
Windows Vista Home Premium
Windows Vista Home Basic
Windows Vista Ultimate
Windows Vista Starter
Now, what about upgrading? It appears that depending on where you are coming from and what you are going to, you may need to reinstall completely but there are some options that do have an upgrade path (only about 1/3).
There is a lot of good information out there about Vista. Now is the time to start researching.
Source : Dialycuoftech