Holy cow - one guy uses no caps, one guy uses them when they aren't necessary! I'm getting a headache reading this thread
Here's where you need to go:
http://www.nasarockymountain.com
SCCA costs a lot and is more for people looking to jump into racing with a big budget. NASA is better for those just getting started and only wanting to race occasionally. They help you learn as you go without having to attend an expensive race school before you can start competing. You start out with an instructor on track and move your way up into the faster groups at your own pace, then you get your racing license when you're ready. Let me know if you have any questions, as I help out NASA here in the Rocky Mountain region.