If you are hell bent on getting a degree and you want one that is useful to the aviation world then have a look at Kingston's
Foundation Degree in Aircraft Engineering
This degree will get you JAA recognised aircraft engineering qualifications and you'll do work experience at KLM's engineering facility at Norwich. In other words, you'll really know how an aeroplane works and it will definitely help you with the systems component of the JAR ATPL.
Also, if all else fails and you lose your medical/can't get flying work then you'll have industry recognised qualifications that will or should get you a job fixing them.