Russelsnr...
You commented, "I see a scene, setup the camera look through the view finder and then start zoom in zoom out get home on the computer only to find the what I saw in the first place is not what I zoomed to so I thought if I got a prime fixed focal it would assist me in the composition of a scene."
IMO, the best tools to assist in composition are located a few inches behind the viewfinder: The photographer's eye and brain!
I often read photographers stating that they want to shoot with prime lenses because primes will "force" them to pay more attention to the composition of an image. IMO, except that a prime MAY have a faster aperture and MAY have slightly better image quality; there is absolutely nothing that say a prime lens of 50mm can do that a zoom left at 50mm cannot do.
One lens of another will not "force" you to be more attentive to composition anymore than cigarettes "force" you to smoke. Composition is up to the individual decision of the photographer at the time of the shot.
I primariy shoot with top-line zooms because: their image quality is more than sufficient for my needs and they provide me with versatility in composing my image. I tend to do the majority of my cropping in the camera and leave very little cropping for post processing. That way, I can use all the pixels in my image and don't have to throw any away. A prime will only allow me to crop in the camera if I am standing in the serendipitous exact spot I need to be. This doesn't always happen and "foot zooming" is not always a possibility.
I "could" have framed this shot differently with my zoom lens but I could not have foot zoomed from the location I was shooting. The composition may or may not be what you would have used. However, I would have had the choice of composition using a zoom. I would not have had that choice in using a prime; except to switch lenses which might of might not have provided me with the composition I wanted...