I have the Arduino Uno and I'm working on a project to build a controller with different inputs and some outputs for readouts. In classic style, I got the Arduino Uno before realising that I might not have enough I/O points to connect everything I want. 

I believe there is a way to expand my Uno by using an I/O Expander? Has anyone done something similar? The controller will be for a specific game called Kerbal Space Station. There are quite a few articles helping with the build but not specific to what I am looking at.

Components I'll be using:

INPUTS:

 - 2x 3 Axis Joysticks
 - 11x Microswitches
 - 6x Toggle switches
 - 1x Analogue slider
 - 1x 10 point rotary switch

OUTPUTS:

 - 4x 12 pin LED Bargraphs
 - 1x Serial LCD module display