How to put uploaded images into a static directory?

I'm going to be developing an app that I'd like to have a regular form where you can upload a single image with it, but then I'd like the image to be put in a static directory (like public) so the main server (not mongrel for example) can serve it fast. Anyone know the easiest way to go about doing this?

Sorry, am kind of new to rails...

Thanks rob

Easiest is probably to use the file_column library

http://www.kanthak.net/opensource/file_column/