Limiting number of Products in Cart

Hi there,

There are many tutorials out there about how to limit or max the number of products that can be bought, is there a way to limit the number of specific products in the cart? Say we have 5 products, a, b, c, d, e, I wan to be able to let people add say any 3 of those items, and buy any quantity they want for each of the 3 items, but they can only add 3 of the products to the cart, and after the 3 products then they can’t add any more to the cart.

Is this possible?

Take care,
K