Hello Im preparing to build a new home vmware lab. I was thinking about desptop part (i7) to build that lab, but i think better hoice will be on intel xeon processor and board also from intel (supermicro) For that project i have at this moment: 1. Computer case from Fractal Design DEFINE XL R2 TITANIUM GREY http://www.fractal-design.com/?view=product&category=2&prod=112 2. Hardware RAid controller from LSI LSI MegaRAID SAS 9271-8i 3. Six hard drive's from WD (6 x 3 TB) WD Red WD30EFRX (3TB, 64MB, SATA/600) 4. RAM 16 GB / soon upgrade max to 32 GB G.SKILL DDR3 2x8GB 1600MHz CL10 RipjawsX And right know i need 1. CPU 2. BOARD -> For Board from INTEL <- http://ark.intel.com/compare/66137,71384,71385,61042 Which one will be best choice ? -> For processor (CPU) <- http://ark.intel.com/compare/75054,75465,75057,75464,75056 Which one will be best choice ? Most important difference is SOCKET for LGA1150 (Socket B2 LGA-1356 vs LGA1150) and size of board (SSI ATX 12" X 9.6" vs uATX) Socket B2 LGA-1356 vs LGA1150 ? SSI ATX 12" X 9.6" vs uATX ? ps. What are most difference's beetwen processor Intel Xeon E3 and E5 ?