I have tried module after module trying to find the right one to meet my needs. I figure maybe asking here might save me a lot more frustration.

I need a news/article/story type module ... with Categories and Sub-category ability. The Categories & Sub-categories would be listed on the Main Menu ... preferably not the module name. "Guest Contributors" of articles would have "write permissions" only to their own Category and/or sub category.

Does anyone know which module specifically can handle this? Or is my need ahead of the development? ;)

Thanks for any assistance & input
Peter