I am reading through this post Upload a file to SharePoint through the built-in web services where upload is done in WSS. I am using SP 2010. Is there a piece of code already posted here that will add an item (via .net interface) using foundation web-services where content type is "XYX" as the target library has about 8 CT associated with it. (with metadata, using hashtable). I would hate to re-invent the wheel if someone already went through this scenario. I forgot about what account to use (like a service account) or user authentication.
How do I add an item with metadata to library for a specific content type using webservices in SP2010?