Fedora 13 comes out with lots of good features. You can download the images at the http://www.fedoraproject.org/ , but it’ll take some time because of heavy request from around the world. It’ll be better to take one or two days before start downloading.
If you can’t wait a second and you already use Fedora 8 or newer version on your box, there’s a way you can easily join in this fresh toy world. Just download ‘preupgrade’ package and run it. It will download all the necessary files and will let you know to reboot it. You can found the details in here : http://fedoraproject.org/wiki/PreUpgrade
I’m already started to download it and it seems much faster than downloading ISO.