[Devnullicus]

Requiring users to download adjunct packages for a mod requires the users to have some technical savvy, though. It's far easier to just provide a .exe installer and have it do all the work (like I do with the editor).

What I might do, though, is have the installer do an optional install of the multimedia pack that I'll bundle in the .exe. That way, if you already have it, you don't need to install it and it will still keep it a separate mod.