Wow, I am a big fan of genetics and have a healthy dose of respect for the complexity of biological processes. Here is a video which highlights some intra-cellular activity. It is truly amazing. We did some interesting work with micro-tubules at Starlab.
Our biophysics groups believed micro-tubule interactions at the quantum level to be the key to human conciousness. Unfortunately this video is a generalized cell not a nerve cell, but it is still an amazing "view" into what goes on. Even if you can't follow the dialog, the visuals are an incredible way to learn about and respect the complexity of biology and our knowledge of intra cellular dynamics. I liked the mito-chondria changing and the self assembling micro tubules, cool stuff in a geeky way.