Check this :
http://www.microsoft.com/windows/default.aspx

Seems to be nice and clean design.
One more thing, how the naming conventions of links taken into? Check the main "What's Windows Live? Start Here. (it opens up link http://www.windowslive.com/default.html?ocid=BAN_VISTA_WL_Refresh_Hero_072008)
So what BAN_VISTA naming convention is? I think it may be Banner but why choose such names as  BAN_VISTA....