Special kit pricing?

I apologize if it was covered before, I could not find any threads on this. I am trying to set a special "kit" price when a customer buys several related products at once and gets a special price. For instance a camera price is $100, battery is $30, a set of a camera and a battery is $125. Is there a way to do it?

If the kits only contain two items as in your example, you can use Better Together from the Free software add ons section.

I like the name of it, almost like a song. But it does not seem to exist in downloads, and searching by the name "better together" does not bring any results :-(

http://www.zen-cart.com/index.php?main_page=product_contrib_info&cPath=40_60&products_id=309

I just found time to install the contribution, it works great, thank you! Is there a way to use it if I need a bit more elaborate way of calculating the discount, as say when buying the item "A" the customer can get a discount on 4 or more items "B" when ordered together?

No, Better Together only works with pairs of items. See PM for other ideas.