OK Guys, I need your opinoin about PPC campaign

Ok so im looking to start a ppc campaign for an e-book (clickbank), and I'm wondering if this is a good strategy. Any advanced PPC'ers let me know.

My site has information (5 articles) about a particular ailment. From all the ppc research i have been reading, it seems i need to group my keywords by category, and drive the corresponding category traffic to the appropriate landing page.

Now, my quesion is, do i promote the the product im try to sell on those landing pages, or do i direct traffic to another page which has a review of the product.

Here is a quick example:

keyword: How to look 10 years younger

Ad Copy:
Look Younger
Follow my quick and easy tips to
look 10 years younger.
www.whatever.com
destination url: whatever.com/look-10-years-younger.

Then The landing page would be an article (500 words, optimized for keywords), with basically a free article on ways to look 10 years younger.

At the bottom of the article I would have a picture of the book im promoting, and big bold letters saying something like:

"Click Here to learn How I looked 10 years younger by using this secret product that the celebrities use."

Or something to that effect.

Then on the following page, a product review (story) of how i used product xyz to look 10 years younger. Then of course, strategically place affiliate links on the page.

My real dilemma is, am I going to spend a ton of money targeting people looking for free info, or will i get some conversions using this method?

I know your gonna say test it out, but im wondering if anyone else uses this strategy. Let me know. Thanks.

Robert