PC CPU build help

Hi all, im getting past being a newbie with blender and now I would like to update my pc with a new one but I need help with what a good CPU will be for using blender, I have about $5000.00 and I will throw in a GTX Titan 6 gig card but should I use an i7 at about 3.4Ghz with 6 cores and 12 threads or a Xeon E5 at about the same 3.4Ghz with 8 cores and 16 threads? I would like to use this build for gaming as well. I will use about 32 gig of DDR3 ram I am hoping for this pc to be both good for rendering/cycles and gaming on a 30 inch monitor running at 2560 x 1600. Thanks, Shaun.