question about inputs

I am a beginner and am trying to make a rock paper scissors program to learn and better understand lua and computercraft. I immediately ran into a problem. I want to do it using 4 buttons, a rock, paper, scissors, and start button. I want it to say "press start to begin" and start the game when they press start obviously. But I cant find a way to make my program wait for an input. I tried os.pullEvent(redstone.getInput('input side') == true) but it didn't seem to work. Any help is appreciated, thanks in advance.

In this case, you would type:

if redstone.getInput("side") then
--What you want to do when you get the input

Glad to help,
[indent=2]Shnup :P/>/>[/indent]

I understand that using redstone outside of the computer is easier, so I would also go with Shnup's solution.

But another way is to use the recently added Advanced Computers. They have mouse click support and can also show color.

I don't think that helped but if it did, you're welcome.

Thanks, that was a pretty simple solution, hope to increase my lua knowledge from here! :P/>/>