I picked up a Raspberry PI 2 and it’s working super speedy. Quad-core 900 MHz, ARM, 4-usb, HDMI/audio out.
http://www.amazon.com/CanaKit-Raspberry-Ultimate-Starter-Components/dp/B00G1PNG54/
After settting up WIFI, installing VNC made connecting the display, mouse, and keyboard no longer necessary. The boot process can be altered to start VNC server automatically.
https://www.raspberrypi.org/documentation/remote-access/vnc/