Programming Quote Needed ASAP

[a1nerd]

I have a on line store. The shopping cart and everything is already setup. I currently have a admin control panel where i can add products and prices and control shipping status. This is what i need added.

I need to be able to add coupon codes for specific products. I need to be able to add discount codes to specific products through the admin control panel

I would also like to be able to display for each product how much quantity we have for each product. For example if you are going to buy a toy you will be able to see how many we have in stock before you add to cart.