Outlook /Entourage
Entourage has been wonderful for operating my office. It links all documents, contacts, appts, notes etc to a project. Its a streamlined version of a number of law office management software systems without a lot of things that I didn't use. No time or billing but that's an easy work around for me in my small office. I wanted something that was easy to use yet filled all the basic project, calendar, contact needs with linking to the documents and this is it. I hope you Outlook users get it too, even if you aren't Mac people.