Since casey b is a beginner and reloading is brand new to him, we need to be careful suggesting that he buy more than he needs. It's really easy for us experienced reloaders to spend money that these rookies don't have.
casey b, all of the case trimmers mentioned above do the job. I sincerely doubt that a beginner needs to trim 4000 cases in 2.5 hours, although some day you might want to do that. For now, the cheapest and simplest case trimmer will help you learn your reloading craft. Besides, thousands of guys get into reloading then they lose interest, and never go back. You might want to watch your investment until you decide it's really the best thing for you.