CCK

I just made the Free Images section with the use of Drupals Content Construction Kit (CCK) and Views.

CCK is pretty intuitive and pretty detailed and with a few CCK-related modules, it can do pretty much everything you want ! Although I had to go through more than a few bugs, most of them had easy workaround and as I have a community spirit, I submitted those issues as well as their workaround.

Overall I'm very satisfied with CCK and I wouldn't hesitate to use it.