Microsoft Expression Web Designer
snip>>>Microsoft Expression Web Designer.
Expression Web Designer is currently available in a free
beta version called a Community Technology Preview.
Expression Web Designer allows you to:
Create CSS-based, XHTML 1.0 Transitional–conformant web
sites by default and work better across browsers,
simplifying deployment and maintenance. Configure flexible
schema settings to support all combinations of
HTML/XHTML/Strict/Transitional/Frameset and CSS
1.0/2.0/2.1 in addition to browser-specific schemas.
Validate your site with Compatibility reporting and use
the Accessibility report to verify your site against
Section 508 and W3C Content Accessibility Guidelines