I really enjoyed the large pictures. Really allows you to see what the guide is referring too which is extremely important for people putting together their first computer. It would have been awesome if the pictures were all around the same size, so varied right now it really makes the guide have a "cluttered" feel to it, and if you could click on them for super large images. Whenever I take pictures with my camera I always choose 6 to 8 mega pixels so they are enormous. Then I resize as needed and because they are so large the smaller pics look a lot better. As far as learning more about sata, check out this wiki definition.