Well, after living with Megan's saturn for the past few days and reading saturnfans.com I can conclusivly say, that indeed a gremlin has gotten into her engine.
Every discussion on line that follows its symptoms (perfectly sometimes) ends without resolution, more questions, them changing every part in the car, and people asking, 'if you ever figure this out, tell me because its been 2 years!'
The check engine light did come on, so if I can find someone to read it then I might know more. I even have my bets on what number it will be. (P0-301 - engine misfire) I will let you know if I ever find out!