I would get that class one first.
I have been training since may time and was in the same situation,however I could not sell up as The wife and kids would be less than impressed! I do have approx £60k equity,so I got proffesional studies loan from HSBC secured on house equity,that way I do not need to make any payments until 2007,at which point I shall re-mortgage the house to add the £4ok borrowed on to it,as the increased mortgage payment will be about £400 per month less than the loan repayments are going to be.
May sound a bit of a gamble but if my first job (he says confidently!) is f/o on small turboprops for instance there is no way I could afford the payments on the loan and eat!
This way I may have fooled the bank but at least I will be able to pay my debts (unlike some),and not be a great deal worse off,especially If I have to re-locate to the south,the chances of getting a mortgage again with a £600 per month loan repayment factored in would be slim to none.
Hope this helps,good luck with your training.