Modules & VBA :: Calculate Deadline With Workdays And Holidays

I am trying to get a module set-up that will add a number of workdays (no weekends, no holidays) to a date that is mentioned in a form and put the resulting deadline date in another field on the same form (date or remaining days to deadline would be even better).

Now it gets a little tricky, the module will need to select different amounts of workdays to be added to the date in the form depending on what status is selected (different statusses have different amounts of days).

I'll probably need:
List of holidays
List of days required per status
Start date (to which the days can be added).

Example:

Status = "DQ" which has 2 days to work with.
Start date in form = "21/03/2014".
Result = 25/03/2014 or preferably "2 days remaining".