I have been throwing around a few concepts for a new Folder collection
Nice designs, AceMatrix. However, I can't help but feel that you should do more than just folders this time. I, for one, believe you have the skills to do more. We know you can do folders (and great folders at that), and you know you can do folders. Push the envelope... go further. I'm not saying you should do a complete iconpackage per se, but maybe some hard drives, plus an internet and email icon or such like would be good to see from you.
Just an opinion.