I like the Photos hack, but there are no slideshow features with it and the images don't link to their source (in case a user wants to download/print them). Also, movie and sound clips are not incorporated into it. (Hence the title "Photos hack" I presume.)
Not only can I not find this type of thing included in any CMSes, but I can't even find it as a standalone. What a shocker for me, trying to develop a website with photos, movies, and sounds. Is there any talk about developing a multimedia gallery hack for WP?