I'm looking for a GUI utility for generating and verifying MD5 checksums. I know there are command-line tools like the standard md5sum and (less standard) md5deep, but what I would like is a more convenient GUI tool that can handle folders. In my Windows days I had MD5 Utility and MD5summer, but all I can find for OS X is a few silly wrappers that only handle a single file at a time (like MD5). Does anyone know of an MD5 checksum utility with a decent interface that can deal with multiple files and directories? I'm trying to avoid writing one myself.