If you can wait a bit, there is an AWESOME stack that works great with Joe’s Total CMS made by @instacks, you can read about it here
He even has a link to a demo where you can see it in action with the lightbox.
Also, @nickcates has a stack that will also have great Total CMS integration, called Photo. It is not ready to work quite yet with Total but he is working closely with Joe to make it work.