Prove me wrong and A-B test it against some good textual copy. Track actual conversions.
Use these guys as inspiration without stealing their design like those boneheads from a month or two ago: http://campfirenow.com
Regardless of the outcome, you win because now you have actual data to make a decision with.
For me to agree to sign up that your AB test wins, I'd have to proctor the test and at that point, you'd owe me for consulting services.