Here is exactly what I have and need:

I have 2 products

Product 1 - DVD
This CD has a flatrate shipping that is only for up to 9 DVDs. 10 DVDs and up is free shipping.

Product 2 - Larger Case (w/ stuff in it)
This product has to get a UPS quote. It is not shipped from the same place the DVDs are.

The issue that needs resolved:

A customer needs to be able to fill up there cart with as many of each of these products as desired, and if it has 3 DVDs and 1 Large Case then the shipping needs to be (Flatrate for DVDs)+(UPS quote for Large Case).

This project needs done ASAP. Please let me know if you are interested, and give me a bid preferably.