'RealMoney' Radio Recap: Breathing Room

"The market is down a lot and that's always when we should be doing our buying," Jim Cramer told "RealMoney" radio show listeners Thursday.

It's tough to panic when the brokers are doing so well and the selloff looks so mechanical, he said, because there's a sense that we've gone a little too fast too far from 10 days ago when we were down 200.

"We need a rest ... after a very nice run," said Cramer.

So it's time to identify where the bull markets are so you can buy on the way down and feel confident that they'll go up again, he said.

Cramer's first bull market is health care cost containment, and in that sector he likes Cardinal Health(CAH Quote), AmerisourceBergen(ABC Quote), Medco Health Solutions(MHS Quote), Aetna(AET Quote), Cigna(CI Quote) and UnitedHealth Group(UNH Quote).

His second bull market is metals, including companies such as Anglo American(AAUK Quote), Goldcorp(GG Quote) and Phelps Dodge(PD Quote).

In the energy sector, Cramer like drillers including Schlumberger(SLB Quote), Halliburton(HAL Quote) and Nabors(NBR Quote).

In the rail sector, he mentioned Burlington Northern(BNI Quote) and CSX(CSX Quote). And in the infrastructure sector he mentioned Foster Wheeler(FWLT Quote) and Fluor(FLR Quote).

Cramer also said that nuclear energy is making a comeback and is in a bull market. He said that Cameco(CCJ Quote), which operates uranium mines, was down three points, adding that the company will reap the benefits of uranium being in short supply.

In the brokerage sector he liked Bear Stearns(BSC Quote), Lehman Brothers(LEH Quote) and Goldman Sachs(GS Quote).

He said he would take a look at Caterpillar(CAT Quote) and Deere(DE Quote) as capital equipment plays; and that he liked Vulcan Materials(VMC Quote) and Cemex(CX Quote) for the bull market in rocks.