Global hotkeys in Cocoa on Snow Leopard

I am working on a small app at the office for all our mac users to help locate files on the network (more on this later), I decided to go with a spotlight style NSStatusItem based app. I’ve been really inspired by these apps lately (when done right). Mostly thanks to Notify. To make this more handy I decided to include a global hotkey. For Leopard and earlier, one problem is you have to use the old Carbon-based events.