For renaming them File Buddy is great, but it won’t help you with your other needs.
Bookends can organize them. I have a small collection of PDF files and in Bookends you can see the Author, Title, Year, Abstract, and the file (as an attachment). I haven’t used it in a while, though, and you have to do a lot of the input work manually.
For organizing files some people just drag them into DevonThink. I prefere to set up a structure and then import the structure into DevonThink. That is, I do a lot of the organizing by hand.