If you've really got time, it will cost a lot less today than it will tomorrow. I know a couple of the private institutions in Middle Tenessee are raising their tuitions by as much as 10% a year over the next 3-5 years.
I'll second what jack said about appropriate counseling. As a college degree seems to have become the latest equivilent of a high school diploma, you need to either go economically, or really spend some time making sure that your future earnings will be enough to pay off you student loans. I know that my wife will never offset her student loans that she got at Vanderbilt while earning her masters (with a lot of scholarship built in) at today's Williamson County pay rates. She says all the time that if she had it to do over again, she might have skipped it.
That's not to say that you should skip it, just make sure that you are either really committed to the idea, or that you can justify the investment now for earnings in the future.