I prefer to run it in windowed mode (like Cliff) and have borders on top and bottom to make it look much like a widescreen movie would look like on a standard 4:3 television. When you run it this way everything is perfectly proportionate (and in window mode you usually get higher frame rates). IMO the widescreen is the most beautiful version (especially with CalcNorms on) of Jim's Aquarium thus far (until he gives us the new 3D-Version).
