Section in Header not in Text

i am trying to make an appendix for the vast number of floats of
supporting data that i have. i would like the appendix to be of the
following format.

Appendix A
Chapter Title
---new page---
section title in header page number
giant float that takes whole page
x x
x x
x x
x x
x
x x
x x
x x
x x
caption for float
--new page---
section title in header page number
giant float that takes whole page
x x
x x
x x
x x
x
x x
x x
x x
x x
caption for float
---new section that doesn't print on page except in subsequent headers
& in toc---
more float pages

i have sucessfully used the fancyhdr package to get the section title
in the header
but it doesn't print the reference in there properly

i.e. using \section{$^2$H NMR of \prettyref{mol:jahc013} in $^2$H$_2$O}
the \prettyref{mol:jahc013} is properly resolved in the toc and on the
page but not in the header

further i am not sure how to get the section title to not print in the
\appendix sections other than to redefine sectioning commands for the
appendix modifying the example given on p 33 of the LaTeX companion.
however just trying the given example verbatum produces the error of
too many unplaced floats when i compile.

.

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