As you may know, here at Nettuts+, we've covered the popular Laravel framework a great deal. With version 4 on the near horizon, I've received quite a few emails and comments, requesting a screencast that describes exactly how to clone and work with the alpha version of Laravel 4, as well as Composer. Hope this helps!
Choose 720p for best clarity, or download this screencast.
Laravel 4 is expected to be released in early 2013, likely quite near the first ever Laracon. Stay tuned to Nettuts+ for more information on its release!