Custom build PC help

thats pretty hard to do. the os alone costs 100 dollars. not to mention the CPU being 50 dollars at the bare minimum. you arre probably off with a pre built pc build

So you need operating system, cpu, motherboard, ram, hdd, dvd drive and power supply for $200? Good luck.

What are you planning to use the computer for? If it's playing games you'll need a video card too. A bare minimum video card for gaming will be at least $100.

You'll need at LEAST $500.

Not much to work with best I could find is http://www.newegg.com/Product/ComboBundleDetails.aspx?I...

For the money not much else I could find for you. $208.00 after rebate

Well, technically, Microcenter sells refurb Pentium 4's for $10, and if you can find a cheap case and mobo....

But a build with a Pentium 4 in 2012 is so behind.