WD is right about the Wild shape thing. If you'll note, it states "Small, Medium, or Large elemental(Air, Earth, Fire, or Water)." not 'small medium or large creature of the elemental type with the air, earth, fire, or water subtype.'
Also as he pointed out, there's an EPIC Feat in the DMG (Pg 209) called Improved Elemental Wild Shape which states: "Your ability to Wild Shape into an elemental is expanded to include all elemental creatures (not just air, earth, fire, and water elementals)." it also includes bonus size categories and gives you all of the elementals extraordinary and supernatural abilities. (OOOH...)
WD - When asking for something outside of allowable sources, it's usually advisable to include what it does, as the DM may not own that particular source.
Albedo - Was just waiting on your response so I could finish the character.

Still waiting for these two (From the same post as the education feat question)
Second : What limits do we have on Arcane Foci/Material Components? I understand that they have no 'worth' in the school, but how much can we start with, and will they be available to get later? You stated they have no value here, so does that mean we can't buy them if we need more in the future? or that we'd have to travel elsewhere to obtain them? Or would they simply be 'available' without having to pay?
Third : I have a request; Mordenkainen's Sword has an arcane focus requirement of a 'miniature platinum sword worth 250gp'... For story & Thematic purposes, could I substitute a crystal sword for this, considering that either way they'll be 'worthless' to the general populace? I'd also plan on enchanting it in the future to grant various abilities (most likely not as a weapon, as a 'wondrous item), but those would be of course subject to further DM approval, and kinda irrelevant to the current question.
Well, since they've been talked about a lot and you haven't expressed any problems with it so far, I'll just assume we can have whatever material components/arcane foci we want and make my char. under that assumption until/unless you state otherwise.
Unfortunately, I have to leave for work soon and ENWorld is loading REALLY slowly, so I'll have to post him when I get home. *L* Ah well.