Pb To Retreive Max Value With Aggregate Subquery

I would like to know which products are my best sells by sellers, but i
would like to retreive this info by product id, seller id and the total
amount of sells for this product.

My Sells table is :
Seller_idProduct_idTotaldate_s
1 2 1020/05/04
2 4 1512/05/04
3 5 2206/06/04
1 5 1807/06/04
4 8 1213/05/04
7 2 1119/05/04
3 4 1421/05/04
2 4 1418/05/04
1 5 1817/06/04
2 5 5008/05/04

etc....

I know how to retreive the total sells by product id and seller id

SELECT Seller_id, Product_id, SUM(Total) AS total
FROM Sells
WHERE date_s > '01/05/04'
GROUP BY Seller_id,Product_id order by Seller_id

Seller_idProduct_idTotal
1 5 36
1 2 10
2 5 50
2 4 29
3 5 22
3 4 14

I would like retreive only the max of total, and the Seller id and
product id, like this :

Seller_idProduct_idTotal
1 5 36
2 5 50
3 5 22



How can i do without using a temp table ?

Thanks for your help.