I think you should also consider the Mazda2, though there's no six-speed and no xenons.
The 1.3 is about 90bhp and the 1.5 is about 115, which puts it neatly in the midst of the low end of the hatches you listed.
I agree with NSX, you've been down the Mini path before and I, personally, don't like the Coupe. The Wind isn't really my speed either; the heavy roof mechanism and the styling do little for me. It also looks nigh-on-impossible to see out of with the roof up.
The CR-Z might prove interesting, though it is pretty porky for this group. Is there some sort of governmental incentive to drive hybrids that would make it more favorable?
The MiTo sounds like a pretty solid choice, though I'd imagine it's pretty pricey in this company. A test drive/review would be much appreciated.
Same story with the Scorpion; expensive, but (maybe) worth it.
The Miata is also pretty infallible. The only negatives I can think of are that Europe doesn't get the six-speed, two seats, it isn't as light as previous generations, and, knowing you, it is probably too perfect.
All in all, I'd say a Cygnet is your best bet. Or a Flavia...