Thanks for creating a guide, Virt! It looks pretty cool, but unfortunately, there's a couple of issues I have to point out. The first is administrative wise that you posted in the Art Guide forum without your guide being run through myself first. Please read the Submissions
thread next time, but this is a no biggie.
The second issue is more major. I'm sorry to say that I'm going to have to ask you to rewrite this guide. At the moment, the core of making sprites is barely ten lines long and as a result, it's not quite clear about what you have to do. Have a look at some other spriting guides -- Singidava's, for example -- and look at how it presents itself. Images are a must for something along these lines,
"For this guide, you'll need Photoshop CS3, some sort of drawing tablet that has pen pressure capabilities, a decent amount of drawing skill, and a general idea of shading."
This seems a tiny bit of a turn off to most users... you could rephrase it to be more friendly. Not everyone on AAO uses a drawing tablet -- most users are content with a trusty mouse, or even a touchpad. "General idea of shading" could be expanded upon, to give potential artists who don't know their light sources a couple of links to tutorials and such.
When writing a guide, place yourself in the feet of your intended target audience. Imagine that you haven't had your experiences, and think of how they'll read and interpret the guide. Good luck!