Now I want to add user profiles for the membership db users, and allow users to maintain their profiles. What is the BEST PRACTICE for accomplishing this
I have started working with a BDC connection to the membership db, but cannot successfully connect, and don't know if this is a supported/recommended approach anyway.
Please advise.
I've opened a support case with MS.

Connecting user profiles to a standard aspnetsql membership BEST PRACTICE?
ElephantMan
"...There is an open query to development regarding this issue... please wait for that
Tim C.
http://devcow.com/blogs/jdattis/archive/2007/02/23/Office_SharePoint_Server_2007_Forms_Based_Authentication_FBA_Walkthrough_Part_1.aspx
daniel009