"U.S. Global Investors (NASDAQ: GROW) -- a mutual fund management company which focus on resources and emerging economies -- will benefit as declining interest rates in the U.S. also boost emerging economies and demand for resources," says Ken Kam.

The editor of Marketscope explains, "When the Federal Reserve wants to lower interest rates, it can print more money, but it cannot control where the new money will go. Fed policy makers intend for the new money to stimulate America's economy.

"But there is no reason the money has to stay in America. The U.S. dollar is accepted around the world and this means that when the Fed cuts interest rates, the new money stimulates the economies of others countries as well as ours.

Every once in a while there's a compelling research report issued in the Concrete Canyon that goes virtually unnoticed. Wall Street, so often caught up in the mood of the market 'right now,' sometimes drifts past data and fails to fully-publicize information that reveals fertile ground and investment opportunities.

That may have been the case with U.S. Global Investors' infrastructure report.

The report, entitled "Infrastructure: A Global Opportunity for Investors" notes that $41 trillion will be needed to modernize urban water, electricity, and transportation systems globally, during the 2005-2030 period, according to an estimate by Booz Allen Hamilton. In the United States, the figure is $1.6 trillion, according to research by the American Society of Civil Engineers. There are two distinct but massive infrastructure tasks: in emerging markets, a massive build-out to support growth; in the United States and the developed world, a focus on repair and replacement, according to U.S. Global Investors.

This article is part of a 20 article special report on "Metals, miners and money".

A highlight at the recent New Orleans Investment Conference was a speech by Frank Holmes, CEO of US Global Investors, on "mega-trends" -- with a focus on global infrastructure needs, from the U.S. to China.

Here, we offer excerpts from his speech, as well as some specific stock ideas from Frank Holmes and US Global Investors' Chief Strategist, Jack Dzierwa.

"Megatrends are usually defined by sustainable and substantial growth in capital expenditures in any country or sector. They can be created by governmental policies for infrastructure or a massive technological breakthrough.

"We isolate megatrends through a series of proprietary models, including a top down analysis of such issues as global macroeconomic theme, regional and country trends, technological trends, government policies, and currency effects. As examples of megatrends:

• 1950s -- 1960s Megatrend: Massive growth of infrastructure in the U.S. and Europe leads to post-war prosperity, creating a wealth effect and consumer culture.
• 1990s -- Present Megatrend: Moore's Law and disruptive technologies lead to massive growth in information technology and data communications.
• 2000 and beyond Megatrend: Unprecedented change in global growth driven by globalization, urbanization, and wealth creation leads to a global infrastructure boom on a massive, intractable scale.

What are the best speculations and investments among metals, miners, and other resource plays? To find out, I turned to 20 of the nation's leading newsletter editors, as well as speakers from the recent New Orleans Conference, a leading forum for resource advisors.

Their current top ideas cover a wide diversity of ideas, from gold and silver, from alumina and copper, to platinum and palladium. These picks cover markets from Chile to China and from Canada to Russia. These ideas also range from large cap, well-established, and diversified companies to small cap, development-stage junior speculations.

Readers should only consider these ideas as a starting place for their own research and should keep in mind the caveat that any stock you buy should only be considered within the framework of your own time horizon and risk parameters. Meanwhile, here are 20 different advisors assessing various aspects of the metals, mining, and resources sectors: