Shoppingcart/Freeship in Header has been submitted to Free Addons and should be available soon.

This mod will give you a box in your header which shows the number of items in the cart, the total amount if any items in cart, the amount required to qualify for free shipping, and a checkout button if any items in cart.

You can set its position and style by editing your stylesheet with rules suggested in the readme.

Compatible with multiple languages.