Hi Dan,
I was a mature student, 42 when I started, and have just graduated this year with a 2.1, so it is possible.
However, studying requires a tremendous amount of self-discipline and sacrifice and an extremely supportive partner. My children were 5yrs and 7yrs when I started out and are now 9 and 11.
I did an Access to Healthcare course for a year, which covered a bit of psychology, biology, chemistry, social issues and study skills, and then applied to uni.
As I had family I could only apply to two universities, due to travelling, and was lucky to be accepted at both.
Sadly the job situation is rather poor at the moment and I have been told that it can take up to a year, post qualifying, to find a job. Many of my fellow students can apply anywhere in the country but I am restricted to reasonable travelling distance from home, which makes it difficult.
Hope this info. helps