SharePoint List Scalability

Question

I am particularly interested in Document Libraries, but in terms of general SharePoint lists, can anyone answer the following...?

1. What is the maximum number of

Answer 1

The exact answers have already been given, however I do feel I should add this warning:
This might be one of those situations where if you have to ask, you can't afford it.
So if you find yourself approaching the limits posted earlier, think long and hard about what you are trying to do, and make sure you're not doing it wrong.