IMHO, his build is already top grade..
Specs:
Intel Core i7-4960X Extreme Edition
ASUS Rampage IV Extreme
GYGABYTE R9 290X OC 4GB
G.Skill RipjawsZ DDR3-2133MHz 32GB (4X8GB)
DELL U2712HM 27" LED x4
WD CAVIAR BLUE 1TB/SATA 64MB CACHE// SAMSUNG 840 EVO 1TB
LG INTERNAL GH24 SUPER MULTI DVD REWRITER 24X SATA
Corsair Obsidian 800D
Corsair Professional Series Gold AX1200 1200W
LOGITECH Z323 SPEAKER SYSTEM
WINDOWS 7 HOME PREMIUM 64BIT
Wait for Haswell-E, which will come in Q3 2014. That will be a huge difference with 8core/16threads and DDR4.
Intel Haswell-E Roadmap Confirms DDR4 - 8 Cores and Launch in Q3 2014
Otherwise:
- Change to a pair of Samsung 840 Pro 512GB in Raid-0 (to replace his Evo 1TB)
- Get LG BH16NS40 Blu-ray writer with M-Disk (for Blu-ray movie support?)