The Number 10 Website has much of interest - including podcasts of the Prime Minister
http://www.number10.gov.uk/output/Page10617.asp; A History of 10 Downing Street http://www.number10.gov.uk/output/Page175.asp; and biographical details of British Prime Ministers http://www.number10.gov.uk/output/Page123.asp
For those with a taste of nostaglia (Remember again the Thatcher years? (perhaps not)) or a wish to see Prime Ministers from before you were born visit
http://www.number10.gov.uk/output/Page11749.asp
