smitten u must be out of your mind .
in fact , even i am in the process of writing an ebook myself , but what i am doing here
is going around google and other forums checking if there is a demand for the product
or not .
Dont try to sell a product that is already flooded the market , instead create a product
whose demand is on the rise .
You can check out google trends and may be yahoo buzz to do so .
If i were u , i would spend more time on list building .
say for example you have 5 websites , that are dealing with the niches you are
marketing , and you give away some free sh!t to them to sign up .
You can end up with a list of 10,000 email addresses if each site had 2000 sign ups .
you could use paid traffics to do so .
Like people on all forums say ,
Just my 2 cents .