Pagemodo. And guess what? We really liked it as it was super easy to make a landing page for our Facebook page. Basically, you just have to add images from your blog (or new ones). It was really simple because it also let us choose which page we wanted (in case you have several FB pages) and it installed for us. Now there's something pretty to look at when a newbie goes to our Facebook page (and it has links that work too!).
If you try it and decide you don't like it, then removal is simple too. Just follow Pagemodo's instructions.
Give it a shot and let us know what you think!