Task Reminders

Is there a way to set a reminder for a task that will email the assigned team member a specified amount of time prior to the task due date? I've tried node-reminder module and it almost works, but it requires one to set the reminder a certain time from the date the task is assigned. This requires too much mental computation time and allows opportunity for potential error. A better approach is to have a check box for "Set Reminder" with a pull down for several choices of time. Much like Outlook works.

Thanks