Will Knight:

The new service, Dropbox for Teams, which has been in beta for the past year, is aimed at companies. It will provide a terabyte of storage for five users, along with administration tools and support, for $795 per year. Additional user licenses cost $125 per year and come with 200 gigabytes of additional storage.

First I had heard of this, but seems like a no-brainer. You can read more about Teams here at their FAQ.