Music software

If he doesn't have the money he should save up for it. FL Studio is hard to grasp if you're not use to composing your music on the fly or with no clear idea. So is Virtual DJ which is used more for live shows, but I quite enjoy it personally.

If you wanted to get a grasp on what music works well together first before stepping into composing there's also MixMeister, which is a nice place to start if you don't have experience beat-mixing tracks. It's a little limiting, but it starts you on the basics.