HP-Pavilion-Slimline-s

The HP Pavilion Slimline s5500 Desktop PC is a great general purpose PC for those wanting performance in a small stylish package

HP-Z1-Workstation

The new HP Z1 is the world’s first all-in-one workstation featuring a 27” diagonal display that snaps open to let you swap out parts and make upgrades. No tools required. Unleash your creativity with accelerated performance, 27" LED-backlit display that supports over a billion colors, and HP’s world-class reliability. The HP Z1. Advanced design from A to Z.

Inspiron-620s

Intel(R) Pentium(TM) G630 Processor (2.7GHz)
Genuine Windows(R) 7 Home Basic SP1 64bit (English)
2GB3 DDR3 SDRAM at 1333MHz
500GB SATA Hard Drive 7200 RPM
 

Inspiron-One-2320

2nd Generation Intel(R) Core(TM) i3-2120 Processor (3.3GHz, 3MB Cache)
Genuine Windows(R) 7 Home Basic SP1 64 bit (English)
4GB3 at -1MHz
500GB 7200 RPM SATA 16MB Cache Hard Drive
 
 

OptiPlex-390-Desktop

Dell OptiPlex 390 is available in three different chassis sizes that blend seamlessly into office environments and respect our planet. 
Flexible and environmentally conscious design 
Essential performance and productivity 
Business-class control
Get the job done with the efficient OptiPlex 390 desktop featuring the 2nd generation Intel® Core.
Choose the graphics options your work demands
Enjoy immediate productivity with support for Cloud Computing
 

XPS-8300

Explore new worlds or create your own with the XPS 8300. With remarkable processing speeds and dazzling high-performance visual and audio presentation with huge storage capacity, optional USB 3.0 support and a robust power supply that just won’t quit.

XPS-8300-specs

2nd Generation Intel(R) Core(TM) i5-2320 Processor (3.0GHz, 6MB cache)
Genuine Windows(R) 7 Home Premium SP1 64 bit (English)
4GB3 DDR3 SDRAM at 1333MHz
500GB SATA 3.0Gb/s Hard Drive with Native Command Queuing