How can I write bundles in Cocoa without much "fuzz" around it? I just want to have a bundle with an Info.plist, a Contents Folder, and that folder should contain a couple of files.
If you are simply looking to create directories with Cocoa, check out NSFileManager. It has the method:
-createDirectoryAtPath:withIntermediateDirectories:attributes:error:
I also assume that you have read - Bundle Programming Guide
This guide will provide you with the complete anatomy of a bundle.