There are lots of options and they vary in length of time to complete and the previous qualifications/experience needed to begin.
It all depends on what you want from the course. Perhaps speak to your local college and see what they have on offer. If you are a mature student you may be able to enter at a higher level (because of life experience) or do an "access" course and then jump in.
If you are looking to use the psychology qualification for work purposes make sure it's properly accredited (many of the online ones are fine for personal development but of little use in the work environment)
Hi scottsblue, what sort of a psychology course would you like to do? Are you talking about a BA degree, a course in counselling, or... ? The requirements and content would depend on the course.
If you're talking about a BA degree, this would take 3 or 4 years. Typical subjects would include research methods and statistics, introduction to various psychological models and the history of psychology, neuropsychology, developmental psychology, personality, psychology of work, health psychology, mental health issues, cognitive psychology, etc. There tends to be quite a lot of practical work and projects covering these topics as well. After your BA, you can go on to become a clinical psychologist (competition for entry tends to be stiff) or counselling psychologist, if these are the areas that interest you.
There are also various counselling courses available (not at university-level), which may be open to anyone.
Your choice of course would depend on whether you're looking for a specific accreditation you're looking for, or whether you want to study psychology as a hobby.
The OU also offers various courses in the field of psychology.
Entry requirements vary, as a mature student you can often do a course without meeting "standard" requirements (e.g. by passing an entry exam and interview).