Complicated "group by" question

I have a table of people ("reviewers"), a table of review assignments
("assign"), and a table of review acceptances ("accept"). I would like to
be able to write a query to return the latest (e.g., max(assign_date))
assignment for each reviewer, plus the acc_id field from "accept". I
think I should be able to do this with a GROUP BY clause, but am having no
luck.

Table structure:

reviewers assign accept
-----------------------------------------
reviewer_id assign_id accept_id
reviewer_id assign_id
... assign_date
... ...

Thanks for any guidance.

Andy

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Andrew J Perrin - http://www.unc.edu/~aperrin
Assistant Professor of Sociology, U of North Carolina, Chapel Hill
clists(at)perrin(dot)socsci(dot)unc(dot)edu * andrew_perrin (at) unc.edu