DNick - this is not a technical part of the thread - but I wanted to just let you know of my experience. I am (as you've said about yourself) generally seen as technical in the domain of most everyday people (e.g. the most technical I get (probably) is writing a few macros in Excel VBA (which is a relatively easy language to code in) but all of this rooting and flashing was very new (and scary) for me too. In fact, it all sounds a bit sexual...! In the domain of AndroidForums however, I'm a complete novice/newbie/noob, etc...
Anyways, once I plucked up the courage to finally root (main reason was to get more space on my internal memory, improve battery, and generally have more control if/when I needed it), SURoot, Rastaman and Lecter (one of his linked 'how-to' vids) helped me out when things went a bit pear-shaped, because it didn't quite work out as easy as originally hoped.
Generally speaking, I've not seen many stories at all about phones being bricked because of rooting - as SURoot says - if you are careful and follow instructions *and it sounds like you will do just that out of pure fear...* then you'll be fine.
I've now flashed in GingerVillain and have more space, better battery, better performance, and am generaly much happier and able to do more stuff with my phone - which is what I was after in the first place. Job Done.
So, go for it - and there's no such thing as a stupid question - if you don't get it, you can bet your bottom dollar that there are others that don't get it either. Remember also that googling various phrases and questions can also help up your knowledge of the terminology quite rapidly!
Best of luck, but I'm sure you'll be fine.