Thank you to all. Your comments have been very helpful.
Andrea - I am in Australia

. Sad thing is I lived in London for years, before I got into this family history lark.
Half of my partners family are from London/ Suffolk/Norfolk/Lincolnshire which is why I thought about origins. Half are from the Liverpool area ..... SO FAR - who knows where I might be led later in the search.
I believe I have had the best luck with my Warwickshire searches, but would like to go back further if possible. Would it be of any benefit for me to join a local history group in that area, given the fact that I could never take full advantage of that membership? What I probably need is parish records.
Jenny I will most likely take your advice and test the various waters before I commit.
Not sure if I have investigated familyhistoryonline ... will check that out too.
I have had a "fiddle" with ancestry (as much as they allow without a subscription) and even though I specified a date range in the 1800's,I seemed to get LOADS of recent material. This bugged me at the time, but it could have well been something I didn't do correctly ... like not reading the instructions ...
Thanks so much for all your help.