Building pc? need suggestions please

Hi, I will be replacing my 5 year old pc with a new Quad core Intel (using for 3D and motion graphics work). I haven’t build a pc in 5 years and I’m afraid of messing/breaking something but it will save me probably like around $200 going with Newegg plus all the parts will be top of the line. Does HP and Dell put crappy motherboards into their computers? Are there any other companies that are reliable where you can customize a PC and get a good deal on a Quad Core Intel?