Here is a neat page which allows you to display the gold value of any gold coin, or 'melt value' based on the current spot price of gold.
This facility is so useful I wanted to create such a page for Bullion Gold Coins.com, before I saw it existed already.
It covers all standard weight bullion coins, plus historical gold coins of many countries, including the USA, Australia, Austria, Belgium, Britain, Denmark, Finland, France, Germany, Hungary, Italy, Mexico, Netherlands, Norway, Peru, Russia, Saudi Arabia, South Africa, Spain, Sweden, Switzerland.
When using the cruzis-coins.com site, just look at the chart to see the current price of gold, type it into the box, press Return and the gold value of every gold coin listed will be shown. For some reason the button the site provides does not work: just type the spot price, press Return and it will work.