Office Computer Build?

I built myself a gaming computer about a year ago, and my mother is always talking about how fast it is and how she can't get anything done on her laptop. She says she needs her laptop, my dad's laptop, and her phone, just for to keep up with her thoughts (she's one of those people who has 30 tabs open at once, and is switching between at least 9 of them at any one time). None of the tech they use is top of the line (iPhone 4, laptops are a few years old, etc.), so I was wanting to build her a desktop computer that can keep up.

The only issue is, I don't know what is important for a work computer build. I assume a lot of RAM and a decent processor, but I'm not terribly experienced in component selection. She like my dual monitor, and I was hoping to use a hd tv I have as a monitor, but she won't be doing any hardcore gaming, so I'm not sure on the graphics card.

My budget is about $1000, which is what I built my gaming computer on, so I think I can do this?

What build would you recommend?

Same build as a gaming computer but bump the ram up and drop the gpu to as low as possible

Well my budget gaming PC (bought in system I finished off myself) would probably work alright for those purposes…
- AMD A8-7600 APU (3.1GHz Quad core with 3.8GHz Turbo) (Socket FM2+)
- Asrock FM2A68M-DG+ motherboard (Asus make some good ones too)
- Corsair DDR3-2133 RAM 2x4GB (8GB)
- Asus DVD Writer
- Icy Box Memorycard reader to fill the hole where the floppy drive would've traditionally gone.
- ASUS GeForce GT730 2GB GDDR5 Graphics card… The AMD processor has an R7 graphics built into it, but the Asus/NVidia card has slightly more power + keeps the RAM free instead of the built-in graphics borrowing some of it.
- 400w Power Supply (Corsair or EVGA usually a safe bet)

For a main hard drive, maybe go for something like a 250-500GB from Western Digital… And use it exclusively for the operating system + installed programs.

For a secondary hard drive to save files on, go for a Seagate Hybrid drive in 1TB or 2TB size (Seagate Firecuda)… That way it keeps your files safe if something goes horribly wrong such as if the Operating System gets trashed by something like a memory failure or something.