Re:3 choices? Ramifications? (Score 1)

Sharepoint is far from perfect, but my experience with new office and Sharepoint is that you simply need to add the new MIME types to IIS for the new .docx, .xlsx, etc extentions. I think the most significant concern presente here is ownership of data, ability to move data to a new system, and legal compliance concerns. Outsourcing is cheap, google has great features, spam protection etc.. And super-low TCO... But the data is now outside your organization. As a professional IT consultant, I don't think the cloud is mature yet. Also, can't you use google for their calendaring and some simple ppen source email server for messaging, spam and Av? Be very cautious of cloud-based offerings. It's very attractive but there's a reason for that. They're making their money elsewhere. Don't know where but just be cautious is my take!