Shopping Cart icon in menu

I am really liking this plugin. You have done a very good job thank you for making such a great solution for downloading files.

As I fine tune my site I would really like to add a shopping cart icon in the menu to my site that would tell my users at the minimum the number of items in the cart are and maybe even what the total price is. I really like the solution you have on your site but I am thinking that I may need to have a smaller option. But my question is there a way to do this with the free version of the download manager? or can you point me to some thing (method or even plugin) that will help me do this?