I want to be able to setup tasks/tracking associated with Events ... for example, for each 'Event', I want a series of tasks that must be completed in the lead-up and post the event. Each task would have a due date in relation to the event (ie. 1 week before event, 1 day before event ....) . Ideally, these tasks would synchronise with my calendar also.

I would be absolutely thrilled if someone could please steer me in the right direction with this... is this something I can achieve with the CRM module of Zoho, or do I need to subscribe to another module?