A recent PloS Biology paper (comment, press-release) shows clear evidence of evolution from lower primates to humans. The study investigated the gene sequences of an important brain-gene in primates and humans. Importantly, the evidence is not in the coding region of the gene (its product shows no variation between humans and apes), but in its regulatory sequence. This case study exemplifies how subtle alterations in gene expression can have far reaching efects on brain function. With studies like this one, it's becoming easier to imagine how 1-2% difference in genetic material can lead to the ape-human difference and how this difference was brought about by evolution.
It'll be interesting to see how the creationist crowd will try to explain this now rapidly accumulating sort of evidence