Using Cameron Moll’s grid as a massive starting point I made a slightly modified version in Photoshop which I can switch on and off the various grids as layers and with 1024px and 800px overlays to see how a design gets cropped.
A few photography skewed links I’ve stored up.
I'm sorry - you want what?
I needed (approximate) RGB values for several of the colours in the MACal 9800 Pro range, but had little luck on Google – so I rolled my own, available for download if anyone finds it useful.
Microsoft have just given up trying and are now ripping off Apple artwork wholesale.