Well, I've been doing a lot of reading, and I've decided that I need to have a good external flash in my bag if I want to shoot people. It's critical to have light on at least part of the face, and especially the eyes, and if Mother Nature won't do it, I'll have to.
Canon has some rebates going on through the beginning of July, and the Speedlite 580EX II is on there, so I ordered one yesterday. Then I'll just have to learn to use it!
Actually, a friend sent over a site that she reads that has some really awesome flash tutorials on it. I've already read a bunch of them, but I feel like the real learning will come when I have the flash on my camera and am experimenting with it. Trial and error is pretty much how I've done things so far -- flash will likely be no different.
I've avoided flash thus far because I was kind of afraid of it, and I thought it would be really difficult to learn. Well, it probably will be difficult, but I'm not as afraid of it anymore; I think it will open up some new possibilities that I'll be thankful for.