Deb,
We use Jasco FP 920 (not on your list). Works great in a stand alone mode,
has all the options you need, very sensitive, low baseline noise. Does not
need any filters (contrary to HP 1046). Independent programming for ex.
and em. wavelenghts. Special flow cells to use with a CE instruments are
available. In our opinion superior to HP 1046 (the only detector from your
list which we have). Apparently HP has a new fluorescence detector
available (I haven't seen it yet). It may be worth checking - HP 1046 was
great when introduced.
Jacek Mozdzanowski
Bioanalytical Sciences
SmithKline Beecham