Display prices while filtering by attributes

Hi,

How do I display the product variation price when I filter by attribute?
In my store I have 10 products all with sizes S,M,L,XL. When a user clicks filter by size ‘S’, can the product list reflect all size ‘S’ prices instead of “Starting from $xx”?

Regards,
Rin

http://wordpress.org/extend/plugins/woocommerce/