Hello, I am currently using a core2quad 6600 based pc and it's time for an upgrade. My wife has an even weaker pc so I will probably just transfer my pc to her and build myself a new one. I use the computer mostly for office tasks but I like to have many apps and tabs open simultaneously. I don't do any type of gaming but I occasionally use photoshop, CAD (Solidworks), and Finite Element Analysis (Ansys). I use two monitors but one is pretty much dedicated to my security cameras (the DVR software is always running). If possible, I'd like to reuse the SSD hard drive and Nvidia Quadro K620 graphics card from my current system. My case is an Antec Sonata 2 with an Antec Earthwatts 500W hard drive. I could reuse those or buy a new case and power supply if required. I would appreciate recommendations for an Intel based build that would suit my needs. Thank you.