Summit doesn't require membership. You just have to register with FilePlanet, which you can do by clicking on Login. Keep that cookie on your computer, and everytime you want to download, your registration will bypass the login screen.
You will not have a subscription, so you only have access to "public download areas." Those sometimes have a wait (depending on time of day), but never anything I found too terrible.
EDIT: Bah. DW beat me to it.
