I'm looking for a "media repository" or "file repository".. some sort of a library or gallery app for a web server that will allow a team of people to look at images, SWF files, Doc files, FLVs, etc in a searchable "gallery" sort of format. Bonus for having the ability to comment on the files, the ability to put a thumbnail or screenshot with non-image or media files (i.e. a custom screenshot to represent the contents of a zip full of junk). Having user groups would be needed to allow only certain people to add files and comment, while other parts should be publicly accessible.

I'm thinking of something along the lines of what Coppermine does for images.. but for all file types.
I'm thinking of something with a better UI than PHP Navigator.

I bet there's something out there close to this (please comment if you know of one), but my real reason for posting is to kind of prod someone who has the time to start planning this in Flex. Now that we know Flash Player 10 is going to have some runtime filesystem access it's time to start thinking of raising the bar for these types of web based utilitarian apps. I've seen loads of demos of Flex apps that use sliders and filters to search through large data sets and this would be a good application for that.