text: To see why the Higgs-bottom associated production is natural with large tan(beta), check the 2000 report of the Tevatron Higgs working group (I know two co-authors in person and know that they're at the top) where the Higgs-bottom associated production is mentioned in the last sentence of the abstract - and throughout the paper, especially on pages 29-31 (32-34 of 187 in the PDF file). A large tan(beta) is useful to enhance the cross sections - that go as tan^2(beta) - which is why the Fermilab physicists chose this process as one of their favorite places to look (because there's a bigger chance to see something).