I had a similar problem. After the 3rd person said, "Hey Jim, thanks for jm.com!" I decided to call myself "Lama". Ask Kakki about the clarity of having a screen name.
Lama PS, I don't think calling them both "BM" is a solution either...... np: PazFest, disc 1. Did I mention how nice the photos are? Jenny said, >You know it just dawned on me today that I can't distinguish between the two Bobs in an email by referring to one of them as Bob M. Geez can't you guys do something about this?>