The most important piece of gear is your brain. You use your brain to store what you've seen for use later, to learn as much as you can read and hear about storms and when and how they form, and you finally use your eyes to determine thunderstorm anatomy and your own safe position relative to the storm.

Electornics are useful, very useful. But they will not make you a good storm chaser. They can even create a sense of false confidence or give patently false information if your radar scan is old or you don't know how to interpret the data you see. Learn all you can before you invest thousands in gear. It just won't help you that much if you don't know what you're doing.

Formerly I used this page to maintain a detailed catalog of my gear, but I found it was out of date about every three years. I'll keep the list updated below, and rely on your Google skills to take you further.