Well, laptops are okay, but it would have to be a work-horse laptop. I know people who use a workhorse laptop for photos, movies, and animations. But it would either a Macbook Pro or a Dell XPS or equivalent system. So a laptop could work for OmegaD3k.
If you want to go laptop or plan on being mobile, I would suggest the Macbook Pro 17" or the Dell XPS 1730.
If you plan on staying stationary, then a desktop would be cheaper and more suitable to which others have already suggested parts for.