IBM says commodity PCs don't cut it in the enterprise. With that in mind, the company Tuesday unveiled a line of desktops and notebook computers with many of the same features that IBM PC general manager Jon Judge says are staples "in the rest of the E-business infrastructure."

Specifically, the new NetVista desktops and ThinkPad notebooks are heavy on security, manageability, and services features typically associated with larger, more expensive IT systems such as servers. Some of the new models include what IBM claims is the industry's first embedded security system for encrypting user files and E-mails. Many also include integrated support for wireless networking and Bluetooth connectivity.

Beyond the hardware, IBM introduced services and software designed to make the deployment and management of the new PCs less costly and time consuming. For instance, the company's new ImageUltra software lets users create a so-called "super image" of all PCs on a network, allowing IT administrators to manage software and security updates remotely. IBM also launched its Access Support and Rapid Restore services--both aimed at automatically diagnosing and resolving problems.

Judge says the new products and services represent IBM's belief that the PC as commodity model--pioneered by Dell Computer--isn't sufficient for large businesses that need to deploy and manage thousands of systems. "This is a dramatically different approach to the PC business than some of our competitors" are taking, he said during a conference call Tuesday.

Industry watchers say the strategy could pay off. "Total cost of ownership is much more important than a given sticker price, and smart buyers will recognize that," says Technology Business Research analyst Bob Sutherland.

Among the products unveiled Tuesday: New M Series NetVista desktops ranging from $999 to $1,999 for models with enhanced security features; an upgraded A Series ranging from $699 to $1,999; and a new all-in-one X Series ranging from $1,499 to $ $2,549. On the notebook side, IBM introduced new A Series ThinkPads, which have been redesigned to feature two modular bays, integrated support for Bluetooth and 802.11b wireless protocols, special Web navigation keys, and the IBM Embedded Security Subsystem. Prices range from $2,849 to $3,749. The company also added embedded wireless capabilities to its T Series ThinkPads and unveiled the R Series ThinkPad for budget-minded buyers. R Series systems are priced from from $1,249 to $2,099.