ok, here's my initial sketches...I'm not too great with a pencil but it has helped me to come up with a few ideas that I would probably not have if I jumped straight into modelling.
The original idea when I started sketching was to get something like a termite mound or traditional hut that could draw air through the building from bottom to top. I ended up with something similar in shape to the "girkin" building in London....

....anyway, I'm looking to use more natural materials & it will be a little more squat so I'm hoping that it will not be quite so similar when I've finished.
I had the idea quite early on to have water running under the building(s) which would keep the air cool as it is drawn up through the centre & it could also be used by a wheel to power the building.
For some reason I began playing with the idea of solar panels splayed out like leaves...originally in a random fashion, then more like a palm tree. I'm not sure about this idea...it could work but I'm concerned that it might look too rediculous.
anyway....most of the things that I need to work out will be much easier in 3d so, when I get a chance, I'll load up Lightwave & play with some more ideas.
ps. HOORAY for the extended deadline!