Custom Crops has some good deals on Cricut cartridges (view HERE).
Oh My Crafts has good deals on Cuttlebug items, which they are calling either "deadstock" or discontinued (view HERE).
I recommend checking each of these sites frequently for both "deals" and notification of new products. Or, sign up for their emails and get that information sent directly to your inbox. Oh My Crafts usually has a "code" that enables you to receive 15% to 20% off their listed prices, or free shipping, etc. I have ordered from both of these companies many times and feel they are reliable retailers.
Finally, I am going to send you to Diane's blog Capadia Designs for what I think is a leak of pics of new cartridges. I cannot find the items she has shown on the Custom Crops site. I think they might have made a booboo. But, she has screenshots from several new carts that look DARLING! Take a look HERE!
Have a great evening!