Browsing and picking a folder from a window

Hey all, I'm just learning how to code using cocoa and Objective-C (already know some C and Java) and decided to make a little app for myself... I'll leave the boring details out.
I already have my little window interface with tabbed views and such, now I want to put some sort of file browser in one of the tabs so that the user can provide the program with a folder, and then I'll use that folder's contents later on in the program... I looked around the object palette, and couldn't find anything that fits that description. I'd appreciate any help =]