If you're off to uni next year and going to be short of cash / spending it on 'better' things - alcohol, useless rubbish from the £1 shop, alcohol - the usual - then you could always apply for a GAPAN PPL scholarship. They're awarded every year to people who have a passion for flying but may not have the means to obtain a PPL on their own. The closing date for application this year is Tuesday, so if you do decide to apply it will probably have to be next year. There are a couple of rules and regs if you are awarded a scholarship - such as the length of time you have to complete the course in and such - but it's a means to an end with the result being you're able to fly.
http://www.gapan.org/
You could always consider the University Air Squadron scheme run by the RAF as well - not easy to get in to, but once you're in they offer flying training, AT both home and abroad, plenty of sport and pretty much anything else you can think of. If you complete their syllabus you have enough hours for an NPPL - and shouldn't take you long to build up the last few hours (mostly solo X-country nav) once you leave uni.
Edit: Forgot to mention, there is a thread about the GAPAN scholarship lurking on this forum somewhere.