Hi Carol,
have you looked at the Mahara e-portfolio tool? We're using it in conjunction with Totara for a number of regulated (healthcare) professional groups. It's got a nice, simple CPD plugin, but then does rather more, allowing learners to record evidence stores, submit pages of evidence to internal assessors or external auditors, and the like.
Happy to discuss further - but if you have a Totara partner talk to them first (they're likely to have Mahara knowledge too).
Best wishes,
Tim @ Think