Learning sign language (BSL and ASL)

One of my new year resolutions is to begin learning sign language. It is something I have been thinking about for many years but have never got around to doing. I guess, similar to a spoken language, sign is not something your are going to learn in a short period of time – I think I need to take positive action now and start to learn so that when I do eventually lose my ability to hear I will still have a method of communication.

I know next to nothing about ASL and BSL at the moment. I can sign the BSL alphabet, but that’s it.

Does anyone know of any good books, courses or online tutorials for learning ASL and BSL? As I live in the UK, BSL is my main priority but I’d like to learn a bit of ASL too.

Thanks.