If you just cannot wait until Goliath at Six Flags Great America opens (and that's looking like it might happen the third week of June) then perhaps a real point of view video will help?
The park released it through the news but it has hit YouTube now, and is quickly gaining plenty of views there. It shows off the fast and furious Goliath, which from the top of the lift to brakes has about a 45 second ride time. The coaster's two inversions look to provide a tremendous amount of hang-time - and the first floater hill is going to be a zero-o heaven.
If you want to check it out, follow the link!