IBM Lenovo ThinkCentre M52 Tower Computer 512MB RAM 80GB Hard Disk Windows XP Pro 811328U by IBM $428.09
The ThinkCentre M52 is a great solid machine from IBM/Lenovo. With Windows XP installed it is ready to use out of the box.

IBM Thinkpad T43 1.86GHz 512MB 40GB Laptop Notebook 2668 CDRW/DVD XP Pro by IBM
LENOVO (266846U) IBM ThinkPad T43 - Pentium M 750 1.86 GHz - RAM 512 MB - HD 40 GB - DVD-ROM / C

IBM ThinkCentre M52 8215-22U Desktop Computer - Intel Pentium 4 531 3GHz, 3GB DDR2, 500GB HDD, DVDRW, Windows XP Pro (Off-Lease) by IBM $279.97
The off-lease IBM ThinkCentre M52 8215-22U Desktop PC comes with powerful components in a small form factor design that saves precious space. Onboard features include a 3GHz Intel Pentium 4 531 processor, 3GB of DDR2 memory, a 500GB HDD, and a DVDRW optical drive in addition to the Genuine Windows XP Pro operating system.

IBM ThinkPad T41 (2379DJU) Laptop (1.60 GHz Pentium M (Centrino), 256 MB RAM, 40 GB Hard Drive, DVD/CD-RW Combo) by IBM
Introduce your on-the-go staff to liberating ThinkPad T41 notebooks with Intel Centrino Mobile Technology (select models). They're thin, light and can go unplugged for up to 9.5 hours when you combine the optional ThinkPad T40 High Capacity battery with optional ThinkPad Ultrabay Slim Li Polymer battery. Select Wi-Fi certified models even feature new 802.11a/b/g technology for exceptional...

IBM 09N4254 160GB 7200Rpm Serial ATA Internal Hard Drive by IBM $125.91
Insist on a high-performance, massive storage solution that can complement your ThinkCentre desktop system's performance. Serial ATA is a storage interface for the latest computing platform.PRODUCT FEATURES:Ontrack Disk Manager included. This software prepares the drive for use, migrates data from older, slower drives, and overcomes legacy hardware, BIOS, and operating system;Includes...

AWESOME IBM T40 1.5GHZ 512MB 40GB CDRW/DVD WIFI XP PRO LAPTOP by IBM Lenovo
Performance features abound in highly portable ThinkPad T42 notebook. It offers 14.1" TFT display that is ideal for viewing spreadsheets, presentations, Web pages and more and is still only 1" thin. It also offers one of the latest Intel Pentium M processor and 32MB graphics.

IBM T42p ThinkPad 14.1" Notebook Computer - REFURBISHED by IBM
1.7 Ghz Intel Mobile Pentium M 735 processor / 512MB RAM / 40GB Hard Drive / 14.1-inch 1024x768 TFT Display / Windows XP Pro 1Gb Ethernet installed on systems via the system board Wireless 802.11b included Battery Type - Lithium ion Microsoft Windows XP Pro preinstalled CDRW/DVD-ROM Combo Drive

IBM THINKPAD T41 CENTRINO-1.4G ( 23731FU ) by IBM
Introduce your on-the-go staff to liberating ThinkPad T41 notebooks with Intel Centrino Mobile Technology (select models). They're thin, light and can go unplugged for up to 9.5 hours when you combine the optional ThinkPad T40 High Capacity battery with optional ThinkPad Ultrabay Slim Li Polymer battery. Select Wi-Fi certified models even feature new 802.11a/b/g technology for exceptional...

IBM THINKPAD T22 P3 900 LAPTOP by Various
Low-budget mobile computing!This IBM ThinkPad T22 features the classic Intel Pentium III 900 MHz processor and includes 128 MB of RAM. Install your favorite OS onto the 20 GB hard drive. Access media and watch DVD movies with the DVD-ROM drive! The bright and clear 14.1-inch LCD screen lets you work or play without eyestrain! This system may be old, but it still makes a good inexpensive system!...

IBM THINKCENTRE S50 P4-3.0G/800 ( 818343U ) by IBM
The ThinkCentre S50 desktops feature a tool-free chassis design, which simplifies and enhances usability. Encased in a durable steel chassis, components inside the machine, such as the hard disk and memory, can easily be removed by the customer, making the PC serviceable and upgradeable, helping to limit the downtime and cost associated with on-site support. Cable routing is bundled out of the...