Tantrums

More Aidan tantrums today. This behavior is just escalating. He only had 2 fits today. I don't know why he thinks that screaming and throwing a fit will get him what he wants. Ainsley is not quite that bad. She has her moments, but right now I just am afraid to take Aidan anywhere because at any moment when I tell him "no" I think he is going to blow. I hope this gets better soon. Any suggestions? I am already taking away video games/computer and tv. Not sure what else to do besides spanking and I hate spanking because I really don't feel that it works either. Just don't know what to do with him right now...anything to stop the tantrums.