I actually do video and After Effects on my Macbook Pro, as well as all of my Photoshop work with huge multi-layered files, and it flies. I have a more powerful Quad-Core tower at work, but it's only a slight improvement in speed, and being mobile with my Macbook far outweights that. In fact, there are tons of people that do video editing on the fly with Macbooks. I wouldn't dare try it with a Macbook Air.