Here's another one I've been working on for a while. Took about 6 hours total. I only used a Microsoft ball mouse and Photoshop 7 & CE.
<a href="http://www.appstate.edu/~jt52439/spike.jpg">Click here to see it.</a> It's really, really big, and your browser will probably resize it so it fits your screen. Make sure to view it in all its glory by making it the right size
Of course you might want to leave it resized so you can see the entire thing at one time.
It's pretty big. It turned out better than I expected. Spike from Cowboy Bebop is definitely the hardest anime character I have drawn (with a mouse). Took me hours to figure out his face.
EDIT: Here's the link to my older projects.
http://www.tfproject.org/tfp/showthread.php?t=73907