My '96verada cut out yesterday after I beeped the horn! I dont know if the horn is related but it hasnt run since.... can any one give any suggestions Please?

More information needed mate. What happens when you try to start the car?

More info needed, I suggest you pop the hood and look at the all the fuse clips though in the little box, it sounds like a fuse might have gone!, if thats the case your car comes with spares tucked away in a little compartment near the steering wheel