Anyone, including overseas residents, can order certificates online and pay securely by credit card, as described at http://www.gro.gov.uk/gro/content/certificate.

Fees are listed at http://www.gro.gov.uk/gro/content/certificates/fees.asp - £7 for full birth, marriage and death certificates, increasing to £9.25 on April 6, 2010.

The full GRO reference can be obtained from copies of the GRO indexes which are held by many libraries and record offices, or possibly from FreeBMD and some other sites.