Are there any good articles/books for getting into more complicated flash. Not necessarily 2000 pounds of equipment in a studio, but multiple and remote flashes.
You might wanna try Portrait books. But be careful - many books don't focus on the technical aspects that you're looking for. They focus on what is going on in the photographer's head and the techniques involved rather than the actual equipment used. Just make sure you know what you're buying.
The basics of lighting are just that: "basic". I've read a lot of expensive books, and none of them taught me a thimbleful compared to actually practicing myself. Look on the internet, find some sites (for free) that talk about basic lighting, and then practice. Here's a site to get you started. Personally I find much of the photography there a bit cheesy, but maybe I'm just jealous that he's making so much money shooting scantily clad ladies Anyway, the lighting tips (for portraiture) are pretty good... http://www.garageglamour.com/tips/tipsmain.php