Just wanted to comment on the "Elemental Pentagram" spread, because this is similar (if not actually identical) to a spread I developed called the Elemental Pentacle and which can be found on my website at
My version is meant to be used with elemental dignities fully enabled; that is to say, the positions actually have an assigned dignity and will modify the strength of the cards that land in them. Wands cards are weak in position 3 but great in position 5, for instance. I explain this in more detail on the website itself. If you're not familiar with elemental dignities you can still use the spread, of course, but it may lose some of its impact.
(Incidentally, I don't usually visit this particular forum; I hit it by accident on my way to "Using Tarot Cards". What are the odds of such an "accident" happening right when one of my spreads was being discussed? [insert Twlight Zone theme...])