Hex grid in illustrator

A neat step-by-step tutorial for making a hex grid pattern in Illustrator.  I'm working on better art for my Zombie Ball game (and maybe a better title, too), so I need this kind of thing.  I'm going to give it a try, and I'll post the results.

I picked up Illustrator last year both for games and because I often have students who need to use it or something similar, and I figured it would be useful to learn it.  I find it much more difficult than Photoshop, which I picked up mostly right away.  The menus and controls seem much more cryptic (although Photoshop sure has some weird stuff).