While I haven't had a chance to review the latest version of FC++ that's being offered for boost, I have reviewed most of the previous versions over the last few years. And I think quite highly of this library. And I believe that until there is core language support for lambda's a library solution will always be a trade off. Hence I believe that there is room in boost for both BLL and BFC++. Yours, -Gary Powell- powellg@amazon.com