Pay per Click and Google AdWords?

I am considering using a PPC (Pay per click) affiliate program and Google AdWords in order to generate a new income.

Basically… Get paid each time a customer clicks a link, but then pay Google AdWords for advertising it in the sponsored listings…

If the amount I am paying for the google AdWords is less than the amount I get paid by the PPC (Pay per Click) service… Then its a Win / Win situation.

I was just wondering if anyone knows of any legislation or terms and conditions that prevent me from doing so?

Many Thanks.

Smokey