"The Obama administration is poised to spend a lot of money on infrastructure; one important sector is the the nation's electric power grid and the communications system," notes growth stock advisor Dave Dyer.

In his Dave Dayer's Newsletter, he explains, "Some products will win big, others will get nothing, but one company will get more business regardless of which products win: Quanta Services (NYSE: PWR), the leading electrical contractor in the country.

"Quanta's service business stands ready to expand with the infrastructure buildout no matter which products are selected.

"They do design, installation, maintenance, and repair on just about any type of network infrastructure (electric power, telecom, broadband cable, and gas pipelines.) Their moat against competitors is size. They are the largest in their field and that is in no danger of changing.

"Infrastructure stocks have been laid low by the economic downturn; but once massive government stimulus programs get growth going again, these companies should be among the surest winners," says Stephen Leeb.

In The Complete Investor newsletter, the advisor explains, "We've found four top infrastructure stocks, now at bargain-basement levels, that we think will surge. All are all astonishingly cheap when you consider how vital their role is in worldwide economic growth."

"It would be difficult to find a group of stocks more leveraged to economic growth yet whose valuations imply there will be no growth.

"If you have any faith in the world's future, these stocks are for you, and we think they will be dramatic outperformers as stimulus spending starts to kick in.

"Most diverse among the four is Jacobs Engineering (NYSE: JEC), which serves the chemical, pharmaceutical, building/infrastructure, and oil and gas industries. Nearly 20% of its revenues come from government sources, domestic and foreign.

"The company has nominal debt and has been generating hefty free cash flow, which management has indicated it may use to acquire beaten-down compatible firms, adding to future growth.

This post is part of a special annual report -- Top Stock Picks '09 -- in which TheStockAdvisors.com asked 75 leading newsletter advisors to select their favorite investment for the new year.

"If there ever was an opportunity to move energy efficiency strategies into the top-tier of national and industrial policy, it's now," says Toby Smith, referring to President-elect Obama's stated focus on renewable energy.

In his industry-leading ChangeWave Investing, which focuses on isolating emerging, long-term investment trends, he states, "The question isn't really if solar companies will benefit, but when." As a favorite idea for 2009, he looks to SunPower Corp. (NASDAQ: SPWRA).

"President-elect Obama seems to be the right person to push energy-efficiency initiatives through -- especially since he is preparing a massive stimulus program that will be unleashed soon after his inauguration on Jan. 20.

"The core of Obama's economic policy appears to be a strategy to transform the United States into an economy mostly powered by renewable and low-carbon energy generation by mid-century. This includes everything from solar to natural gas to nuclear.