Some key features:

Timer - Billable time events can be entered manually or you can use the built-in timer to track your time spent automatically. You can also specify minimum increments, if desired!

Address Book - It has a built-in address book, or it can share the contacts with one of our popular contact manager programs: Chaos Intellect and Time & Chaos. Once a client's information is entered, you can avoid having to retype their information ever again on statements or documents. With just a click, drag and drop, you are managing your client's case and tracking your billable time!

Shared Data - Your information can be shared on a network without requiring any expensive server software. Multiple users can add new billable events, expenses, or enter payments, run reports or print statements, even as others are working with it at the same time.

Home Page - http://www.chaossoftware.com/legal_billing.html