If you want a good test of your bandwidth use dslreports.com/speedtest. It connects to a variety of servers and locations instead of straight from your home to your ISP like what often happens on speedtest.net.
Yep this desk actually has a very poor ergonomic design. The part where the keyboard and mouse should be as thin as possible so they can be as close to your knees as possible. If you have the keyboard and mouse in the idea ergonomic position most monitors do not sit high enough with their built in stands. The back of this desk is too thick for a monitor mount clamp.
Swiping is better than non-predictive touch screen typing, but it is extremely inefficient when you can accurately predict the entire next word and simply tap once to type it. By the time you finish swiping one word you could have typed an entire sentence with SwiftKey. SwiftKey even supports swiping if you still want to do it.
On the Rift website they recommend a NVIDIA GTX 970 / AMD R9 290 equivalent or greater for a video card. That isn't entry level, that is high end, and an adequate system can still be had for under $1500. Entry level gaming PCs are around $500.