Just as a side note, I've worked since I was 16, during A-Levels I was at Iceland, then over the first summer holiday I worked at the Iceland HQ, then for the last summer holidays I was on a IT placement with STEP, so I've got expirence and know what 9-5 work is like.
Reading over these comments I've come up with an alternative to what I was hoping to do.
Finish my degree then work in IT for a year (Currently doing a BSc in Information Systems Engineering at Manc). If I really enjoy IT work then I'll go travelling for a few months (got a mate lined up for this already) then carry on doing the IT job. If I don't enjoy the year as an IT guy I'll go travelling then do a master in business (I've always had an interest in this as well as computing).
Does that sound reasonable?