There isn't a simple answer. There are several fields in IT and it all depends on what you want to specialize. There's programming, system analysis, security, networking, development, databases, computer engineering, etc. You have to decide what you want to do first and then head down that road. For what it's worth, the field of databases and security is in high demand, as far as I've seen. Also, IT certifications are a must nowadays, whether we agree with the principle or not.