Thanks Melinda!
Julie's post is very clear and a good starting point for defining what UI to use. It gave me a good idea and now it's clear to me that we should go in the "NWBC for Desktop" direction...
Now... I'd like to do some "real life" testing with some expert users in order to have their
comments and feedback. In the mean time I’ll review the “Enablement Kit for NWBC” that Simon suggested in his reply!