[mat_rhein]

Two comments:

- drag/drop ist perfectly possible between OF and the calendar of choice! Just make sure you are currently using the cal the task is determined for and drag from OF into week / month view... I also use Optimal Layout to shortcut-arrange the OF/busycal windows to vertically split my screen into two landscape views

- with busycal You can access your OF calendar(settings/sync/publish due reminders as a calendar , I am using CalDAV to sync OF with my Mac at work) that You can optionally create- it will publish as separate calendar giving you an additional and automatic overview of your task due dates without the usual ical sync or similar... also, untimed/unscheduled tasks stay off...