Startup vs Girlfriend
bayareaguy: Perhaps you should ask what you would want if she were the one with a job, a startup and side activities and you were the one feeling neglected?  Things may also be easier for you in the long run if you can honestly figure out what roles each of you has in the relationship.  One other thing to consider if you want children is that biologically speaking you're better off starting a family when you're young.  Speaking from experience I can say that if you do decide to go that route the demands on both of you will be much greater.