AMD Phenom II 1090T  (Six core, 3.2 GHz, Overclocked to 3.9/core)
  ASUS Crossfire IV Formula motherboard 
 16Gb DDR3 RAM @ 1600 
 Two Radeon 6870s (1GB) in Crossfire-X, both on PCI-Ex 2.1 x16 slots 
 Two 1TB WD Caviar Black HDDs in a RAID-0, connected with SATA 6GB/s 
 One bigass case,  
Seriously.  Look at this thing.  And an ASUS Blu-Ray burner drive. 
 Basically, nearly the best technology AMD/Radeon has to offer, with a badass board.  Intel is year ahead, but this is a fraction of the cost.  Really.  Like a quarter of the cost.