Here is a list of everything else you will need or could need to have an easy time setting things up. I've listed the parts so you can get them all from one place as cheap as I could find.
Washers - M3, M4, M5. - 2 packs because you can never have enough!
Signstek HSC8 6-4 Self-adjustable Ratcheting Square Ferrule Crimper Crimping Plier for 0.25-6.0mm² Wire Terminal
OR Sale - Ferrule and crimping tool together
White Lithium Grease - REALLY NEEDED TO MAKE THE Z AXIS SILENT!!
Alternate PSU Recommended
Alternate PSU - You can use the stock power supply but I've seen some horror stories so I just chucked it in the bin and got an ATX one. I'll leave a link at the bottom on a guide to do this. Or just use google □
Digital Multimeter, Crenova MAS830L Multi tester AC/DC Ohmmeter Voltage Tester Detector Voltmeter Portable Tester Meter with Backlight
If you don't want to start chopping PSU cables you can use these to extend the required bits.
Terminal Block 30A
Filament - I've listed a few it's just personal preference on how much you want to spend
If you want to use an external print server (Highly Recommended) use Octoprint with a Raspberry Pi 3
Or Make your own bundle
USB to MicroSD Card Reader - Very useful
If your going to go down the mosfet route then you will need some extra crimp connectors and a crimping tool
Terminal Crimp Connectors
Mosfet - one for the heat bed, and/or one for the hotend.
How to use an ATX Power Supply
Entry Level 3D printer - (kit)
Midrange Plug and Play
High end 3D Printer Plug and Play
http://amzn.to/2mD9iF2 - Rigid.ink
http://amzn.to/2mmZGMN - Hatchbox
http://amzn.to/2m68LZb - Calipers
http://amzn.to/2m2J9vG - Raspberry Pi Bundle
http://amzn.to/2nibYFg - SD Card
http://amzn.to/2m2UGuO - USB to MicroSD
http://amzn.to/2mmgZ0d - HeatShrink
http://amzn.to/2mJZZnn - Soldering Iron
http://amzn.to/2mJYHZn - Solder
http://amzn.to/2mEYV3x - XT60
http://amzn.to/2m6avBR - XT30
http://amzn.to/2mK0bTC - Crimping tool
http://amzn.to/2m2YlZs - Terminal Crimp Connectors
http://amzn.to/2m2PPK7 - Mosfet
http://amzn.to/2nifCyL - Extra Wire
http://amzn.to/2na51Xr - PTFE Tube