You can certainly save a lot of money doing the build yourself. I would definitely suggest the Sandy-Bride E system (X79 chipset). The 3820 or 3930K scream speed and you won't have any issues with processing power for several years.
Since you have a 3K budget have you considered a boutique system builder such as Maingear(Go here http://www.maingear.com/boutique/pc/viewconfig.asp and use code FJEMG) or Digital Storm (See http://www.digitalstormonline.com/compl ... ?id=676382).
