When a stock hits a fresh low, it can either signal a dirt-cheap dream stock or a dreadful stock to avoid. Separating the wheat from the chaff is difficult, but finding well-run companies at bargain-basement prices is a great way to accumulate a fortune over the long run.

With that in mind, we'll use the aggregate intelligence of the 135,000-plus investors participating in Motley Fool CAPS to see what the community is saying about stocks hitting 52-week lows today. The community's approval (signified by four- and five-star ratings) could indicate that further research is in order.

Here are three such stocks:

Company

Today's Intraday Price

Industry

CAPS Rating (Out of 5)

Fools Saying Outperform

United States Natural Gas Fund (NYSE:UNG)

$12.08

Exchange-Traded Fund

4 Stars

1,164 of 1,206

Hansen Medical (NASDAQ:HNSN)

$2.57

Health Care Equipment and Supplies

4 Stars

493 of 518

Source: Motley Fool CAPS, as of July 13, 2009.

Top-rated companies:

  • PowerShares DB US Dollar Index Bearish (NYSE:UDN): Stock price is 9% lower than last year.
  • WisdomTree India Earnings Fund (NYSE:EPI): Stock price is 11% lower than last year.

Top-rated health-care equipment and supply companies:

  • Orthovita (NASDAQ:VITA): Stock price is 159% higher than last year.
  • Atrion (NASDAQ:ATRI): Stock price is 45% higher than last year.

Join us on CAPS to learn more about these and countless other interesting stock ideas.