I'd love this! Do you have these quotes somewhere in a file? I'd like to circle some of my own girly-nonsense on the screen ;P.
And the duration till it changes to a new quote? How about font type of the text, could that be a parameter on the script, or does it have to be system wide setting?

Would be great if someone smart and able could do one app, that could do all these modifications discussed in this thread!