One of these days, I'm gonna get myself organazized.

I have a lot of articles in pdf form. Probably close to a thousand of them. I've kinda got them organized in folders, but I'm increasingly finding it unwieldy, especially when I need to find an article. The searchability of pdfs tucked into folders is pretty limited. So I end up downloading the same articles multiple times. Such a terrible waste of pixels. I need an easier, better, more searchable way to archive this stuff, preferably one that lets me search keywords and content, without my having to actually do any work keywording and stuff. Something that would also make it easier to cite and reference would be fab. I used DevonThink when I worked on my diss years ago, but it required too much effort, and didn't work very well, so I got nowhere with it. Suggestions?