Question about Clickbank

Over the past year I was able to make a pretty good living handling all of my transactions myself. I want to take it to another level this year. I'm planning on using clickbank to do this.

I know that there are those that can't stand clickbank and I appreciate that. I myself have never used them, but they seem to meet my current needs the best for a couple of products that I will be launching shortly.

My question is this. If I have Product A and I want to have an option for the buyer to choose between Product A and Product A + special report at discounted price. Do I have to submit two separate products to clickbank and pay the $50 listing fee, or can I submit both the product and the special report for one $50 and then have the two options?

Hope that makes sense, I do not want a one time offer that comes up after the checkout or at the checkout, but I would like an upsell option that the buyer is able to choose before they get to checkout if they so wish.

As I said, I haven't used clickbank to promote/sell products prior to this, I know that the people are very knowledgeable and wanted to get some opinions here. I also don't want to have to spend another $50 if I don't have to. I know that may sound cheap, but I don't make money by spending it when I don't have too.

Thanks for the help.

Josh