First I'll explain how science shows modern primates and humans are connected. There is an ancient homonid species, A. afarensis (http://en.wikipedia.org/wiki/Australopithecus_afarensis), which is what the scientific community now regards as the common ancestor between us and modern primates. Separating it and putting it in different environmental situations, we can both agree that it would adapt to its surroundings. We are a result of millions of years of evolution of that adaptation, whatever the selected trait was, humans resulted from it, and primates resulted from a different selected trait, and within primates, they all resulted from their own selection. Think of it more like a tree than a line.
Years ago scientists found remains of an early human species. It had a similar skull and DNA similarities. That was about 200k-40k years ago. We can tell the age from the radiocarbon dating process. So you're not gonna see major evolutionary (morphologically human) changes in your lifetime. Not in about 100 of your lifetimes. Changes are gradual, and evolution is a VERY time consuming process. However, there are smaller evolutionary changes. There are studies that show lactose tolerance is a desirable evolutionary trait, and it is readily measurable. Another evolutionary change is ASPM (http://en.wikipedia.org/wiki/ASPM_%28gene%29).
This is the reason I love it when creationists say "evolution is just a theory" I agree with them 100% on that. Theory is a hypothesis supported with facts, evidence, and repeated conclusive testing. The believe in creation, god, jesus, and the bible, on the other hand isnt supported by any of those. So those of us in the scientific community call that a "conjecture"