Hello Computer Learner

I am here to help you with your computer needs. 512 mb of PC3200 DDR is the amount (512) and speed (3200) of RAM. An Ethernet Network Interface Card (NIC) is an expansion card used to make your computer connect to a broadband or DSL service. 400 ATX is a computer case with a 400 watt power supply and an ATX motherboard design. And 128mb 8xAGP with TV is a graphics card with 128mb of internal memory, an 8x Accelerated Graphics Port, and the ability to hook up analog cables to it. To the point, you mentioned you wanted a good computer under $1000. I'll give you a website to get the items you want. Plus, the website gives you free 2 day shipping on almost all their items.

RAM
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http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=80092-8

CPU
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http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=80648

CD-RW
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http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=173428

Case
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http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=141206

Floppy
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http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=111002

Hard Drive
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http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=101318-315006-1

Mouse & Kboard
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http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=211199

Monitor
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http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=239029

Motherboard
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http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=240136

Video Card for Gaming
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http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=320765

Sound Card (Optional)
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http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=360223

Speakers
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http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=360055

I have done my best to add the items that are not too expensive yet do not sacrifice performace. I don't know if these are more or less than $1000. If I were to guess, I would say they are less. The parts above are what you need for a GOOD gaming computer. I hope this helps.