Sometimes, I am really amazed by the names some programs can have. For example, Flock. If you never used it, you should give it a try, it's one of the best tools a blogger/social networking freak can get, and they'll surely drop Firefox after having a taste of this one. Anyway, we're not here to talk about Web browsers, because there's something taking up much more time than just browsing with the wrong tool, and that is mass renaming files.