Display Top 5 Salesman

Just a straight forward question: In the SQL SVR 2000 Northwind database, how do I display the top 5 salesman? I would like to display the salesmen and the total amount of their sales to date. I have this as a starting point:

SELECT Employees.Country, Employees.LastName, Employees.FirstName, Orders.ShippedDate, Orders.OrderID, "Order Subtotals".Subtotal AS SaleAmount
FROM Employees INNER JOIN
(Orders INNER JOIN "Order Subtotals" ON Orders.OrderID = "Order Subtotals".OrderID)
ON Employees.EmployeeID = Orders.EmployeeID
WHERE Orders.ShippedDate Between '19970101' And '20051231'

It displays all the sales between the dates, I just need to work something that will total up the sales for each employee then list the top 5.

Thanx