> 	So, I'm pretty far from a kernel hacker, but I've got a project
> I'm really wanting to get into.

 You do not necessarily need to be a kernel hacker.

> 	What I want to do is put a layer on top of the filesystem to do
> some kind of filename abstraction to rewrite a file path.  I really just
> want a place to look before it looks on the disk.

 I suggest a look into the UNION filesystem, which does something similar.

-- 
Markus Illenseer