Please check out http://www.trevreport.org/
The entire site is written in XHTML 1.1 Strict and there are seperate CSS files for screen/projection, print, and aural use.
In CSS 2 compliant browsers, the top and sides are fixed position and only the center scrolls, but in non-CSS 2 compliant browsers, the entire screen scrolls as should be expected.
On top of that, all pages are Bobby AAA Approved as far as I can tell, and there are access keys for all major navigations that should not conflict with common browser shortcuts.
Thanks for looking,
Hate to rain on your parade so to speak but you really should drop the DTD down to 1.0 strict, at the moment your use of 1.1 is not valid anyway as you server is transferring content as text/html and it must be 'application:xml+xhtml' for an xml document and although the prolog line is correct and mandatory for 1.1 it has the unfortunate result of throwing IE into Quirks Mode.
1.1 is really only suitable for xml documents and for text/html content the 1.0 definition should be used and with the loss of the prolog line you will be able to get IE6 to render in Standards Mode and you may even be able to obtain the scrolling effect as well with a little work!
Otherwise well done you seem to have put a bit of work and thought into things.
Thanks for the advice. I didn't know about how you had to send content as application:xml+xhtml for 1.1.
I have taken your advice and dropped the DTD to 1.0 Strict.