I'm giving up a £40k job to fulfil my ambition of becoming a doctor. Bit scary considering I have 5 kids and a ridiculously large mortgage to support! However, I actually won't be that much worse off cos I'll be working part time in my current job and be able to claim tax credits. I also get a decent student grant.
It took a lot of soul searching to make the decision to give up my relatively comfortable, secure job to head off to uni (again!) for the next four years. But as soon as I made the decision to leave, I felt relieved. Only 104 days til I leave work!