I recommend Worketc. It is a CRM and project management software (http://www.worketc.com/CRM_Project_Management) that integrates all business solution tools in a single interface application. It not only has all the features you mentioned, but gives you an over-the-top perspective of how your business is going, like making a Gantt Chart to analyse your progress. Believe it or not, when I started using worketc, my business began to pick up.