[Haskell-cafe] Search a directory for files

Hi, I'm trying to make a program to make it easy to rename files in bulk. What I'm wondering is how to get a list of all files in a particular directory. I found System.Posix.Files and I'm planning on using the rename function in it for actually renaming, but I can't find an easy way to get all filenames in a particular directory. Does anyone know how to do it? -Eitan