Great choice in cars. I read the whole thread, but didn't see any pictures?
We've had a speed3 for 3 years now, broke the 90,000 km mark last month with no real problems(rear shock developed a leak, was replaced). I went in to a Ford dealership a few months ago to check out the new Focus ST as an eventual replacement for the speed3, but they didn't have any on the lot to test drive.
FWIW I think you made a good choice. AFAIK the engine/drivetrain is the same in the speed3 for the past 6 years. Fuel economy alone is a great reason to choose the Focus. Check out fueleconomy.gov to see (I can't post external links apparently).
Aesthetically, I prefer the exterior looks of the Mazda over the Focus, and the interior of the Focus over the Speed3....but that is subjective. The optional recaro seats in the Ford are pretty sweet. The "Bose" stereo in the 2008 Speed3 is weak even for an oem unit. I"m not sure if they've rectified that in the current verison.