how about some pictures of real-world HUDs?
Found these on YouTube. Not mine obviously. I'm not sure what he's using, but I'm sure we're all interested in a more integrated approach - not something sitting on the dash. Plus, I would want the display a bit closer to the hood level, not hovering straight ahead, maybe that's just me though.
I recently purchased a digital alarm clock, and plan on gutting the LED screen for use with a MPGuino-type setup. I'm looking forward to working on it!