NYCPHP Meetup

[Mitch Pirtle]

Specific to the Mac, I've used iBiz (sales, project management and
billing) and was perfectly happy with it for freelance stuff. Might be
problematic if you have several people needing access though.

    http://www.iggsoftware.com/ibiz/index.php

Not sure if this is enough for specifically tracking sales efforts,
but it might work for you.

-- Mitch