Work with any characters

Hi
Just playing around. Application where user can simpy insert text it a text box, save it to a database and can read "records" saved from database. Easy as that.

*BUT*, I must be able to rest assured that the user can insert any kind of characters. English, Russian, Chinese, Japanese, etc

So, I guess my database (SQL Server for now) datafields must be of certain datatype (nvarchar?) and I cannot represent strings in a normal string in my C# code anymore?

Just checking things out, nothing serious