[Ollie]

For what you describe I'd recommend getting some basic certifications - A+, anything Microsoft, etc. Then trying to get on with an IT consulting company. You won't make a lot to begin with, but once you demonstrate that you're reliable and learn fast they will guide your education based on their clients needs. You'll get exposure to many different systems / company envoronments, then as your experience and knowledge grows you can decide what area you want to concentrate on and if you'd rather shift to the corporate environment you can.