On the recommendation of the company I hired, I purchased this Access Point:
http://www.amazon.com/Ubiquiti-Netwo...ilpage_o00_s00
It was super easy to configure but the software did take a while to install (and also requires Java, which I didn't have installed).
In my wife's office, where she was getting only 5 mbps before, we're getting 118+ with the Access Point all throughout that floor. My wife's printer and PC are connected to the Gigabit switch and she's getting 118 with that connection.
The whole ordeal (two new Cat6 lines wired in three places), three gigabit switches and the Ubiquity piece came out to about $525 dollars, which was well worth it. All of our devices (DVR's, X Box One, Wii U, Blu Ray players, etc.) all have direct connections, which will be awesome for gaming and streaming.