Here’s a website with a compilation of good Photoshop tutorial. Courtesy of the blog at work.
USB key below is proof of my ability to follow instructions, although that’s debatably not a good thing. My only complain is that, well, it tells you in amazing detail what to do, but it doesn’t really explain why you do certain things. Still, pretty cool stuff.
Also, people on the comment board were bitching about how it’s not a vector graphic. Point taken, but if you do it big enough to begin with, you should be fine. Now if I was doing it for a client, yeah, maybe I would build it as a vector in Illustrator, just because you never know.