Embed Shopping Cart link/info in the header

I want to hard code a simplified shopping cart display in the main menu or header section of a website. Usually, I just use the shopping cart widget in the sidebar, but it is pretty common in e-commerce to have some simplified cart info displayed in the header or near the main menu on every page of a website.

This is usually something that simply displays the word "Cart", often next to a shopping cart image, and the a dynamic display of the number items in the cart. Of course, the display itself is a link to the shopping cart. This has probably already been solved somewhere by someone already for MarketPress, but my searches didn't turn up anything but the staff or someone else may already have an answer.

Are there any existing template snippets I can use to do this?