[About $300] Intel Pentium 4 Platform

MotherBoard : Extreme 945 Intel945, DDR2, Pci-x16, FSB1333 $42
Processor : Intel Pentium 4 3.0 Ghz FSB800Mhz 531 Cache 1MB $57
Memory : MVM 2GB DDR2 PC5300 $24
HardDiskDrive : Seagate 80GB 7200RPM SATA $38
Optical Drive : Samsung DVD-RW 20x $24
Graphic Card(s) : N/A
Casing : Simbadda SIM-V 380W $27
Monitor : Standard 17” CRT Monitor $70
Speaker : Logitech S100 2.0 Speakers $9
Printer : N/A
Scanner : N/A
Modem : N/A
Input Devices : Simbadda SM322 Optical Mouse and Simbadda SK922 Keyboard $12
Total Budget : $303

Comment
This is the most flexible spec in this category, using an Intel Pentium 4 3.0Ghz and using 2GB of DDR2 Memory, and this spec have a PCI-x16 VGA Slot, so if you have more money you can upgrade it to better one. we recommend you this spec because this spec is cheap and flexible to upgrade. :D