i would not do Gamefly, especially for a noob. Pretty competitive.
But here are some tips on yout LP you can apply to any offer.
1. having the headline in the header of the site isn't a good idea (i DON'T mean to not put a headline on top, i mean to not put it in a way that it looks like a header/logo/site name lockup). Most people skip the header b/c that is where the logo is. i looked straight at the "free 10 day trial..." line in the white area. which leads me to....
2. Have an emotional headline. Don't try and get too creative. But speak to my emotions. "10 day free trial.." is a feature. Give me a benefit. Maybe have a diff LP for each game system KW you bid on. So if somone bids on "PS3 games" your headline is "Play your favorite PS3 games FREE" and then a sub head about the 10 day free trial at gamefly.
3. Have a quick sell, and then a long sell. Your quick sell is for the people who just need a tiny bit of convincing and are ready to buy. The long sell is for skeptical people.
To do this, have your quick sell be no longer than two paragraphs. And the first paragraph should not be more than two lines. You want to lead people in quickly. The second shouldn't be more than 4 lines. Then have a HUGE call to action button. "Sign up now" or something like that. then below that, keep selling. Maybe a headline like "5 reasons Gamefly is better than renting from a store" and have some bullets. and then more body copy if you want. And then at the bottom another Call to action/ button.
4. Hire an LP designer. Your page isn't the ugliest thing ever. But unless your going to make your site look like a non biased review site or games blog, don't try and make your LP with wordpress. it just does not look that good.
But like i said. Do a little more research and try something other than Gamefly. Don't be afraid to go with offers that have low payouts. I make a good % of my rev on offers that pay less than $1.50.
hope that helps...