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 _______________________________________________ New York PHP Users Group Community Talk Mailing List http://lists.nyphp.org/mailman/listinfo/talk http://www.nyphp.org/Show-Participation