Yes I use both machines. I often use the one on the left for recording screencasts and for testing different configurations.

The wall has a bunch of project notes and motivational stuff

"There is 0 value is fear and anxiety" "Differentiate every day"

and my favorite

"The thoughts of others were light and fleeting, of lovers meeting or luck or fame, mine were of trouble and mine were steady, and I was ready when trouble came - Houseman".