Need good approach for setting up quantity pricing

Hi, I am a new user, so please go easy...  :rolleyes:

We are a manufacturing firm with many channels of distribution.

I am working on a mature implementation that needs some tweaking.  We are trying to do some extensive new e-commerce integration work, and I am supporting that internally.

I need to completely redo our pricing model. - we've recently realized that we need to be using quantity pricing, so we can get the functionality we want on our new web stores.

I expect that when I finish, we will have around 10 price buckets, plus 14 quantity breaks.

There are around 300 active SKU's, so that means I have to get 10*14*300 = 40K individual price values into the system.  And, I need to be able to update them from time to time - so, obviously, I need a batch process.