Case Sensitivity

Hi I have two questions about case sensitivity;
1. Do most people write their queries with UPPERCASE keywords or is that only for the textbooks. Personally I find it a hassle, My little finger aches because it is always on and off the SHIFT key
2. I noticed that when I did the following query
-----------------------------
use AdventureWorks
go
Select * employee
-----------------------------
I get an 'invalid object' message
But if I use;
--------------------------
use AdventureWorks
go
Select * Employee
--------------------
It works. SO obviously the query is case sensitive.
Did this use to be the case with SQL 2000. I don't seem to remember having to be careful about case.

THANKS