Model# PCXCR4000SL

AMD Athlon 64 X2 4000+ 2.1GHZ Dual Core Processor
Asus M2N-E SLI Socket AM2 Motherboard (2000/1600 MT/s FSB Capable)
2GB DDR2 667MHz (PC5400) Memory
250GB SATA2 Cache Hard Drive
18x Dual Layer DVD±RW Drive
Dual nVidia GeForce 7300GT 256MB Graphics Cards in SLI configuration
7.1 C-Media Audio On-Board
10/100/1000 Gigabit Network LAN
8x USB 2.0 Ports Available On Motherboard (4 rear, 4 by headers)
2x PCI-E x16 Slots
2x PCI-E x1   Slots
2x PCI Slots
Silver X-Cruiser Case
600 Watt Power Supply
Logitech Keyboard and Optical Mouse
Creative Labs 235 Speakers
Microsoft Windows Vista Home Basic Edition
Display monitor and speakers as shown are optional  base price $900.00

Model# PCF430A5600BK

AMD Athlon 64 X2 5600+ 2.8GHz Dual Core Processor
Asus Motherboard 4096 MB DDR II 677 MHZ PC5400 Memory 
500GB SATA II 7200 RPM Hard Drive 20X DVD + Dual Layer Drive
nVidia GeForce 8800GTS 320MB Video Graphics Card
7.1 Channel High Definition onboard sound
10/100/1000 Gigabit Network Interface
F430 Mid-Tower Chassis with 600 Watt Modular Power Supply
Logitech Keyboard and Optical Scroll Mouse
Microsoft Windows Vista Home Basic 64-bit Edition
Front Ports : (4) USB 2.0 Ports, (2) Audio (1) Firewire
Rear Ports : (4) USB 2.0 Ports, (2) PS/2 Ports, (1) Parallel, (1) Serial (1) Firewire (1) SPDIF Out
Expansion Slots: (2) PCI-Express x16 – SLI Compatible, (2) PCI-Express x1, (2)  base price is is $1,400 

 Monitor  game controller and gaming keyboard as shown are optional not included in the base system pricing. 

Hp’s Smart Screen Desktop IQ504 Desktop
There’s four models to chose from with similar configure, but different screen size.
Basic machine with a 22” screen $1275, $1450 25.5 “ $1,950 & $2,125