LOL. Some of you guys are super funny.
For a build like this I would agree, the onboard Intel igp would be just fine. Just pick a motherboard that has appropriate video connection options available. Such as 2x DP or a DP and an HDMI. VGA dsub should be avoided to use if at all possible. Now... not all Intel igp are created equal. Some of the lower end ones, like what is still being used on the Pentiums have some more limitations... like nothing over 1080p except display port... and can't run 2 different resolutions due to only having one clockgen. Be careful there, or you may end up needing to get a lower end discrete card anyway. Quadro NVS... that line was exclusively for 2D multi monitor set ups. It's far too weak a GPU to be used for anything intensive. Those are a terrible waste of money, when you can buy some low end geforce that is far cheaper and many times more powerful.
As far as the CPU goes, an i5 is overkill. Unless you wanted to run multiple 1440p/4K displays forcing you into a model with the Iris Pro igp as you may still end up cheaper than a cpu+discrete gpu. Otherwise if we are staying in 1080p land, a Pentium cpu would probably be just fine. They are plenty powerful enough for document work, internet, etc light use and you can save a lot of money buying a Pentium. For someone doing a lot of multitasking with many open documents I do agree having 8GB of memory is a good plan. That kind of stuff chews up ram much more than it uses the CPU. For the motherboard the GIGABYTE GA-B85M-DS3H is a very nice bang for the buck... and it's size is nice. While technically being a matx board, it is still small enough to shoehorn into a nice small minimalist case such as the Lian Li PCQ01. If you want to stick to one drive only, perhaps the WD BlackČ is a good choice, you get 1TB w 120GB nand, or otherwise a lot of storage with ssd like performance for a cheap price comparatively. A good quality brand 300-400w PSU with 80+gold takes care of the power needs. That should still leave you with $500ish to put towards displays, such as some nice quality IPS/PLS or *VA displays... or just go big and get something like EA294WMi-BK 29" ultrawide. Ultrawide may be a nice option as you eliminate all the fuss with multi display while giving a similar type of workspace.
