Dell means business with new PCs

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3.8 pounds. It starts at $1,677, the company said in a statement.

The Latitude D610, which starts at $1,384 and weighs in at about 4.7 pounds with a 14.1-inch screen, aims to be flexible with options for hard drives up to 80GB, built-in graphics or an ATI Radeon X300 card, and CD or DVD burners, the statement said.

The Latitude D810 aims to offer the most computing power and the largest display, with a 15.4-inch view, paired with ATI's Radeon X600 graphics card, which offers 128MB of onboard memory. It weighs about 6.5 pounds and starts at $1,549, the company said.

Dell's Precision mobile workstations come with higher performance graphics for taking jobs such as design into the field. The Precision 6.7-pound M70 comes with a 15.4-inch screen and Nvidia's Quadro FX Go1400 graphics card with its own 256MB memory. It starts at $2,099. The lighter 4.9-pound Precision M20 was designed to balance performance with portability. Thus, it comes with a 14.1-inch screen and starts at $1,649, Dell said in a statement.

On the desktop, the OptiPlex GX280's BTX, or balanced technology extended, design helps it operate more quietly. BTX desktops use one front-mounted and one rear-mounted fan and place components such as the processor and graphics in the airstream that moves between them for better cooling. The fans are larger than in current desktops, allowing them to move more air, but not rotate as quickly, reducing noise. The front of the machine also has four light-emitting diodes, which serve as indicators to help IT personnel diagnose hardware problems.

Aside from being available as a desktop or a minitower, the OptiPlex GX280 will offer customers a range of Celeron D or Pentium 4 processors from Intel. It can also be ordered with between 256MB and 4GB of DDR2 memory and hard drives from 20GB to 250GB. It will offer a range of graphics, from Intel's GMA900 integrated graphics to ATI's Radeon X300 graphics card with 128MB of memory. The starting price of the OptiPlex GX280 is $737, Dell said in a statement.

Reuters contributed to this report.