BambiBoomZ and others who participated in this thread but a specially BambiBoomZ
I had to announce that I have sold my xw6600 dual QC E5450 machine and purchased myself a refurbished or slightly used HP z620 with one CPU setup a E5 2650 8 core Xeon, 24 Gb of memory and a Quadro 4000 GPU pre-installed.
I used the Samsung SSD 840 Pro 512 GB now as my main C:\ SSD drive and a separate OCZ drive for my virtual machines.
I went for a clean UEFI - Windows 10 installation in my since it will be my main productivity computer.
At any rate thanks for the purchase advice and I am glad now even after just a few days that I gotten my new system.
Now just adding some additional hardware and some software upgrades.