For basic tasks it makes no difference which one you choose.
Now, XP Professional is, obviously, a step above XP Home, and includes the following key features/abilities that Home lacks:
* EFS encryption for added security.
* Enhanced networking capabilities, such as the ability to join a Windows Server domain.
* Remote Desktop server.
Windows XP Media Center Edition is built on XP Professional, with two major differences:
* It includes the Media Center addon, the added interface for easy multimedia access.
* It lacks the abilities to join domains like XP Professional can.
Hope this helps,
I am planning on purchasing a new Dell system and am seriously looking at the XPS 400 over the Dimension E510. My question regards the Windows Media Center OS -- what makes this different from XP Home/Pro? Should I be concerned about it with regard to my basic web browsing and word processing needs, or does it simply take care of all that and then some?