I have a SQL Query that counts the number of employees in the query.

COUNT(Distinct paEmKey) AS EmployeesCount

I also need another count, but that would be based on a condition of another field.
So if I were to use a case statement it would look like, but that obviously cannot work.

CASE Balance <> 0.00 THEN COUNT(Distinct paEmKey) ELSE 0 END AS EmployeesCountWithBalances

I thought perhaps a subquery, but maybe there is a better way?