This is the entry from the next day (12/15):
I've made a few sketches and some scribbles (ie notes) for what I plan to do.
Originally, I was planning to have a tube hold the spoiler (tube goes through case and holds supports which hold the fin), but realized this would probably go through the motherboard (duh). Another idea would be to just have support racks bolted to probably the top of the case so the weight is now straight (more or less) down on the case, and the screws aren't touching anything (depending on the PSU size, which may need to be switched out). This was the two pages of the spoiler detail.
I did a front detail, and thought it may be possible to put a windshield under the CD-ROM drive (hopefully), but I'll have to look at the case when it arrives. I've also added the idea of a grill, not only for looks, but for decent airflow from the front to whatever is in that area (probably HDD racks), between the headlights.
On the bottom detail, I decided that 2-4 12" CCFL strips would be good (most likely green) to stimulate ground lighting, with holes drilled in the bottom for the wires (that way I can keep the inverter inside).
Still no idea on how I'm going to make rims on the case feet, though, but I'll work on it more tomorrow.