I definitely understand the logic behind racing with what I have...because I know that for my first several races I'll probably be doing all I can just to hang on. I will probably stick with what I have for at least my first few races before I think about adding any new equipment. I figure if I wait until I am stronger to upgrade, I will probably better realize the benefits.
I do like the idea of having a backup though...it scares me to think that I'd be off my bike for a while if anything happened to any of my components (especially wheels).
Thanks again to everyone for all the great feedback; you've given me a lot to think about. I'll be coming back to this thread often.