Need a solution quick! Webshop Shopping Cart question

Hey people,
please look at the following screenshot:

This is a part of my webshop.
It displays one of the items you can buy.

Now, I want people to be able to see what they selected on a shopping cart. This shopping cart should be in the frame that says: ‘Special Offers’

I want people to be able to fill out the quantity and select a size from a drop down box.

Then I want the Flash movie to add this stuff to the shopping cart.
I want my shopping cart to be a dynamic list that displays what the bought. It should look like this:

 - Shopping Cart - 

(Item 1) | (Quantity item 1)
(Total Price Item 1)

(Item 2) | (Quantity item 2)
(Total Price Item 2)

etc.

How can I make this? I want the list to add an item when people add it to their cart and be able to select an item and remove/edit it when needed.

Please help me quick since I need to finish this soon! :slight_smile:
Thanks!

P.S. I also need to use the content of the shopping cart in PHP when people checkout so I can send them a confirm mail