All in one application - that is Easy Redmine
RTL Radio use Easy Redmine to maintain help desk, resources, attendance and of course all IT and software projects. We like the complexity - using all-in-one solution is just wonderful.
This Easy Redmine plugin notifies you right when you need it. All users can define their own alerts and then they are notified via e-mail if the defined condition is satisfied. Typical alerts are: milestone due date is approaching, budget of the projects / tasks is about to be exceeded, tasks are over due, users have not log enough time spent, etc.