Here are the specs $500 and I will give you a Dell 19" CRT monitor for $100 total $600 firm
Clock speed 2.66 GHz
Processor type Pentium 4
Installed processor qty 1
Max supported processor qty 1
Processor manufacturer Intel
Processor upgradability Upgradable
RAM
RAM installed 512 MB
Max supported RAM 1 GB
Memory specification compliance DDR266/PC2100
Memory speed 266 MHz
RAM features Unbuffered
RAM form factor DIMM 184-pin
RAM technology DDR SDRAM
Video Output
Graphics processor Intel 845G
Max resolution (external) 2048 x 1536
Video output form factor Integrated
Video output interface type AGP 4x
Video output type Graphics adapter
Display (Projector)
Display type None.
Optical Storage
CD / DVD type CD-RW
CD / DVD read speed 48x
CD / DVD rewrite speed 24x
CD / DVD write speed 48x
Optical storage interface type IDE
Storage Hard Drive
Hard drive installed qty 1
Hard drive size 800 GB
Hard drive type Standard
Spindle speed 7200 rpm
Audio Input
Audio input type None
Interface Provided
Interface 1 Parallel IEEE 1284 (EPP/ECP), 6 Hi-Speed USB, 2 Serial RS-232, 1 Keyboard Generic, 1 Mouse Generic, 1 Network Ethernet 10Base-T/100Base-TX, 1 Display / video VGA, 1 Microphone Input, 1 Audio Line-in, 1 Audio Line-out/headphones
Cache per processor size 512 KB
Mainboard
Chipset type Intel 845G
Data bus speed 533 MHz