Hi there Perx.
Are you sure that equity release is the best option for you? I work in in the banking industry, and as part of my bank exams I had to to a project on this exact subject whilst analysing various different providers (Norwich Union notably).
In all honesty, I did not feel comfortable with how things were conducted. I felt that the consumer was left short-changed and treated unethically.
This was a couple of years ago now, and their acts may well have cleared up. If I were in your position, I would consider down-sizing if it were an option. That way your capital would be released, but you are safe in the knowledge that you do not owe anyone a penny.
I hope that you do not mind me putting my two penny worth in, but I would certainly urge you to seek all avenues before you decide on anything. And, if you do decide that equity release is the right option for you (I am not saying that it isn't), I would strongly advise you to get independant legal advice from your local solicitor. Spending a few pounds and having them look through the documents may save you a small fortune with some clause in the very small print.
All good wishes, and good luck!
Scott