Highly recommend an SSD with the Xbox One. Greatly reduces load times for certain games.
Dock you should use:
http://www.amazon.com/gp/product/B00...ilpage_o04_s00
Benchmarks:
https://www.reddit.com/r/xboxone/com...few_benchmarks
Buy an SSD, slap it into the dock, plug the dock into the USB port, turn on the xbox, its plug and play from there.