Port C#/Winforms app to Mac (MonoMac)

I have a C# WinForms application which uses a SqlCE database. This C#/WinForms application gets client and schedule information from a 3rd party database, stores it into SqlCe database - which also stores some emails templates, then allows the end user to email those scheduled clients (using the templates) a few days prior to their scheduled appointment. I would like a "Mac OSX" version of my application. I'm not a big fan of Objective C, and I'd like to leverage my existing integration with the 3rd party database (which was written in C#) - so my ideal solution would be a MonoMac / MonoDevelop port of my existing code. I imagine there are those out there with both .NET and Objective C / Cocoa skill and would be able to advise me better - if a native Objective C version is the way I should go, please tell me why. Essentially the program needs to: -Obtain client appointment information from a READ ONLY Postgresql DB -Store that information into a read/write database (would mySQL be the best on a MAC?) -Let the end user compose email templates (store them in the database) - Mail App integration here would be nice -Let the end user configure delivery preferences (store in db) -On a scheduled basis deliver the email templates (mail merge with client info) to client -The schedule is defined by the end user (could be 1 a day, or every 2 hours throughout the day) -Display the responses of clients who have replied to the emails Again, a port to MonoMac/MonoDevelop so I can continue to write in C# is prefered. I would like all source code relative to the project upon successful completion.