Here's all of them.

http://www.malibutelecom.com/yucca/latin1/2.html

Take the decimal code listed in column 1 and do what Dr.Bill suggested with the ALT key. You need to make the decimal number four digit, so include as many leading zeroes as necessary to do this. You can also use the key sequence ampersand(&), hatch(#), nn, semi-colon(;). Thus & # 163 ; (without the spaces) should give you the other pound sign (£). This latter method should *even work on Macs.