There's so many things I want to respond to and I'm actually a little surprised at Ibis2k12's absence here. I usually just wait for him to post and throw out a "I agree" post. Maybe got lost in the cool ocean breeze he's getting in Yilan these past few days.
I'll respond to the OP's thread question regarding the dangers of cycling since I see that most of the other questions have been answered.
Drop bars more dangerous compared to flat bars? That's the first time I've heard someone actually compare those two and add the "dangerous" word to them. Like many have said, flat bars are more uncomfortable during longs rides, not "less dangerous". That's one of the big differences between the two.
When we talk about danger, we talk about the other cyclists/scooters/cars on the roads. Regardless of where or when you are riding always always be aware of your surroundings. You will hear from both sides of the spectrum in this sub-thread from people hating on all Taiwanese drivers/scooters/cyclists to people that have no had a problem with all three of those groups of people. However, like I said before, the most important thing is, you have to be aware of your surroundings at all times. For example, if you're coming to a turn and want to take it fast, make sure that you make sure there's no one in on-coming traffic. You can be very careful, but the person that didn't check for someone on the other side of the turn won't check and then there's the high possibility of a head on collision.
Another key factor is to make logical decisions, almost everyone on the road (aside from other bikers) out power and out weigh you, there's really no reason you should be trying to overtake them or battle them for the lane.
Good luck with the decision. I myself bought a bike not too long ago and went through lots and lots of research before coming down with a decision. Maybe you and lostinasia can get together for a coffee and discuss your thoughts since you're in the same boat with figuring out what kind of bike you want!