New notebooks from Toshiba and Fujitsu Computer Systems are set to increase the range of options for mobile customers looking to upgrade their PCs.

Toshiba's four new desktop replacement models come packed with as many desktop features that can fit into a notebook-sized package, including Intel's desktop Pentium 4 and Celeron processors. Fujitsu, on the other hand, has rolled out a new version of its LifeBook P5000 notebook, catering for the mobile worker.

Notebooks have been the model of choice for many consumers and corporations replacing their aging PCs over the last year. With the improvements in notebook performance and price, desktop replacement notebooks are an attractive option for consumers who might want to use their PCs in various rooms of the house without having to buy an expensive lightweight notebook.

Toshiba's new Satellite A15/25 notebooks are designed for college students or home users who want to use their notebooks as multimedia devices or for Web surfing and word processing. They come with Microsoft's Office XP Small Business software as an option.

The A10-S129 weighs 6.3 pounds (2.8 kilograms), and comes with a 2.4GHz Celeron processor, 256M bytes of memory, a 40GB hard drive, a 15-inch display and a DVD-ROM/CD-RW drive for an estimated base price of US$1,079. The A15-S129 is virtually the same notebook, but comes with Windows XP Home instead of the A10's Windows XP Professional operating system and has an estimated starting price of $1,049.

The A20-S259 weighs 7.9 pounds, and comes with a 2.66GHz Pentium 4 processor, 256MB of RAM, a 40GB hard drive, a 15-inch display, a DVD-ROM/CD-RW drive and a built-in 802.11b/g wireless chip.

Fujitsu's LifeBook uses Intel's 1.0GHz Ultra Low Voltage Pentium M processor to consume as little power as possible. With an optional second battery inserted in the modular bay, the LifeBook P5000 can last as long as 11 hours, depending on usage, Fujitsu said.

The modular bay can also accommodate the DVD-ROM/CD-RW drive, or a weight saver if the user doesn't need the media drive or extra battery. A 3.4-pound configuration with a 10.6-inch display, 256MB of RAM, a 40GB hard drive, the weight saver and an integrated 802.11b Wi-Fi chip from Intel costs $1,549.