Have you ever thought to give scheduling functionalities in your application. if you dont wnat to do too much work - these fellows have done pretty amazing work for you. i was looking for something to use in my need, and i could not believe my eye when i have looked this. It has almost everything and more:

Company: Capesoft
Product: HotDates - dont get wrong ideas guyes

Included in HotDates:

• Colorize your data using selectable Legend styles for effective data display
• De-activate items in the legend (using the checkboxes in the list)
• Change priority of items viewed (using the runtime priority buttons)
• Output your calendar straight to a color printer
• Update your information directly from the calendars (using Drag and Drop, Cut/Copy/Paste and traditional Insert/Update/Delete buttons)
• Drag and Drop and Cut/Copy/Paste between calendars
• Date-Range selection for easy data entry
• Set First day of week (in the template or at runtime)
• Easy global translation of Day and month names
• Control Templates Included: Year Calendar (1-12 months), MonthViewer, WeeklyPlanner (1 to 100 Days), Day Scheduler and DatePicker.
• Easily drill down or up between calendars
• Free Email support
• No DLLs or blackboxes Full source code included

you may visit them on www.capesoft.com - for under 300 bucks it is not bad deal