Dct_Bombi,
Not sure you live in the same world as the rest of us, but pocketing 15-20K a year? Earning 25K a year in London, paying rent, living a pretty frugal lifestyle....I'm lucky to put 5K aside a year. And at a slow rate like that, it's all the more difficult to save it when it'll take a decade to accumulate the required finance.
Of course, if your parents are paying for accomodation or fixing you up with the job connections this would be different, but I do feelthe reality for most people is that finance is nigh on impossible.