First, thank you very much to all of you for your answers.

Brian, I know it's easier to go to the UK. We don't even need a passport, just our Spanish ID card (DNI). But computing development takes place mainly in the US. Also, El Boqueron said salaries are higher there and cost of living could be cheaper.

Do you have any suggestions as to where to go to live and work in the UK?. I heard Liverpool, Manchester, Cambridge or Oxford are cheaper than any of the cities I went to (I knew they were quite expensive).

Thank you,

Antonio