How can I dump inventory icons, block ID's and block names?

[littleweseth]

I'm currently trying to write better documentation for end-users of Minecraft mods, such as Redpower2.

I would like to display crafting grid recipes for the items in the mods. To do this I would require .png files of all the image icons. The unofficial Redpower2 Recipe List has an example of what I need:

What is the best way to obtain a dump of inventory icons from Minecraft? It would be best if the block ID's and user-displayed block names in English (i.e. "White Lamp", "Red Alloy Ingot") could be dumped along with the images.

Once I have the images, I am hoping to hook into the NEI recipe dictionaries and write Python code or PHP code to render the crafting grids in a manner similar to the Redpower2 Recipe List.