http://www.newegg.com/Product/ComboDealDetails.aspx?ItemList=Combo.216170
http://www.newegg.com/Product/Product.aspx?Item=N82E16820220372
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136319
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139005
Take these, grab another SATA cable (the motherboard in the combo only comes with one), and pick out a DVD drive and case (not to mention any other things you may need, fans, keyboard, mouse, monitor, whatever).
That's basically what I just bought, though a slightly worse processor (I got the 955) and slightly better video card (I had a 4870). And it's a beastly machine I put together. :D