Work out what JOB in the IT industry you want to do, and work backwards from there as to what qualifications/skills are REQUIRED to get into this job.
Then figure out where you can get said qualifications/skills and it will all make sense!
patatrat: Why do you want to be in IT?
Answer that, and you will be half way to figuring out what to study.
And don't say for the money haha, cause very few people who do it for the money will last. Geek is not a job, it's a way of life