Help with my first build

[Lutticon]

I need some help with my first computer build. I want a fast, reliable, computer that will last for a while even as computers will get faster and faster in the future. My budget is around $1,000, and I will use Windows 7 Premium on this computer, and use it for games, CAD programs, web browsing, and video/music. I have a XPS 400 I could scrap parts from, like the sound card, and maybe power supply (if it is sufficient, but I'm not sure what psu the XPS 400 has). Please leave any comments, suggestions, or opinions to help me out. I need help finding a psu, sound card, and graphics card. Please let me know if everything matches up and if this is a good build that will last a while, or if it is a waste of money. Thanks... -Con

Motherboard: http://www.newegg.com/Product/Product.aspx?Item=N82E16813131596

Processor: http://ark.intel.com/ProductCollection.aspx?series=42926 (X3440)

RAM: http://www.newegg.com/Product/Product.aspx?Item=N82E16820231311&cm_re=8_gb_1333-_-20-231-311-_-Product (1 for now, could buy another 1 later for more RAM)

Sound Card: Can use my old sound card or new one, not sure.

Graphics Card: Undecided

Power Supply: Undecided

Case: http://www.xoxide.com/apevia-xdreamer3-black.html

 

[maflynn]

Why a Xeon processor? Personally I'd use a Core i7 with a 1366 base mobo.

 

[Lutticon]

Why a Xeon processor? Personally I'd use a Core i7 with a 1366 base mobo.

Why would using the Core i7 be a better idea? Is that quad core?

 

[Lutticon]

so http://www.newegg.com/Product/Product.aspx?Item=N82E16813131359 and a Corei7 processor? And how would the speeds compare? With 6 slots in the mobo that could be useful.