Mac OS X Leopard or Lion folder template

This is the most accurate Mac OS X Leopard, Snow leopard and Lion folder template for Photoshop including all sizes. (512x512, 128x128, 32x32, 16x16)

This is how I do:

You will need basic Photoshop skills, Photoshop installed (of course), Mac OS X Developer Tools installed (to get Icon Composer) and a program called Icns2Rsrc.

1. Open "Folder Template 512x512.psd" and edit the circle layer to whatever motive you want.
2. Save the icon on the desktop by using the "Save for Web & Devices..." option. Save as PNG-24 with transparency.
3. Repeat the steps 1-2 for all templates (128,32,16)
4. Open Icon Composer and drag the png icons to the respective drop locations. (256 should be empty).
5. Click File->Export... and save the icns file to the desktop
6. Use Icns2Rsrc and open the icns file to get a rsrc file with your folder icon.
7. Right click on the rsrc file and click "Show Info". Do the same with the folder you want to apply the icon to.
8. In the Show Info window for your rsrc file, click once on the little icon in the top left and press command-c to copy. Then go to the folder's Show Info window and do the same but now you want to paste instead (command-v).

And you are done! Feedback is appreciated. If anyone got any easier way to do this please tell me