Putting Aside Money For Grad School?

CapsaicinBoy asks: "Like many geeks, I'm just about to leave academia for a very lucrative position in the private sector. The thing is, I am planning of going back for my doctorate in few years. Hence my question: What is the best way to put aside money for future educational expenses? The IRS guidelines for Educational IRA's appear to be tailored for parents. I'd really like to find a way to put aside pre-tax dollars now for the lean years in future."