Dude, in just one or two generations in japan, people have shot up several feet on average. It's mostly due to different nutrition though. In pre-globalization times, milk products (and meat to a different degree) were really rare in japan, as they simply didn't have the landmass to raise cattle on. Now they can just import it, and it's making people alot bigger.
You can't say that people have stopped evolving, because evolution happens over millions, hell, billions of years. It's not like an ape gave birth to the first human child.
You have problems with darwinism because more apes aren't turning into human beings? That's what darwinism is all about. You have say...500 of one species. Each one lives in a slighty different environment, and has to adapt to it. Not every single ape will turn into a human because they have developed into different 'breeds' of monkeys. Think of dogs. I'm going to assume (without any research) that all dogs originally started as one kind of four-legged mammal. Then, they adapted to their surroundings, and then later on got breeded by humans. Soon enough, there was hundreds of different breeds of dogs that look and act not much alike. They didn't all turn into poodles, but a few of them did.
The only problem I have with darwinism is that human beings are really really really smart compared to any other animals. As a species becomes better and smarter by the less 'fit' members dying off, shouldn't all types of animals have one 'breed' that's at least close to humans in the brain category?