You nailed it with your last comment. Whatever you can give will go a LONG way. If more people were like you, the world would be better off.
Many schools of thought on this and it really depends on you and what you want. Just a couple of thoughts on some tactical things....
1) Think about only having one account. Remember, you can transfer 529 assets to another child of yours tax free. Helps protect you in the event one of the children elect to not go to college, especially if you feel you will good savings for one, but not both
2) Don't sacrifice your own retirement for the kids. While this sounds incredibly selfish, it's more about time. You have less time to "recoup" the loss of retirement investments compared to your child having to take out a loan for college.
3) If you are adamant on providing full cost, who says you need to have 4 years at a state or private university? Doing a year or two at CC can provide transferable credits for "core" classes at a fraction of the cost.
4) Drugs and porn are always an option.
#2 cannot be stressed enough. The best gift you can give your kids is to not be a burden. They have their whole life to pay off college.
With those escalating costs of college - alternatives will become more prudent for pretty much anyone who is not accountant/engineer/doctor track. You could buy a taco truck for half that and make a damn good living for example. Trade school with some business courses - out earn those ELA baristas by a large margin. You also have the element of who pays full retail. Save that much in dedicated college accounts and, IMO, you are a lot more likely to pay full retail than if you saved all that money in a traditional investment account in your own name (401k/IRA/Roth are even it is less accessible for FAFSA calcs).
Wiz is beyond wrong in the "never get out of the market" philosophy. There is a big difference between retirement planning that is almost a perpetual time frame and spending an entire sum within a defined four year construct. Apply that logic to a kid going to college in Fall 2008 for example. Their nut gets cut in half just as they need it! You go from fully funded to spending it all in two years before the market recovers. Insane would be an understatement.
From a budgeting perspective - think of some ways to free up cash flow during those college years.
- Max out your 401k and get use to living that way - when they hit college you can reduce your deferral to use the extra cash flow for college.
- If paying off the house is a possibility before they hit college - think of the cash flow that would open up. - same thought process for any debts you have out there
- ROP term life insurance (return of premium) - cost more today but you get your entire premium back at the end of the term. A 20 year ROP policy would inject a lot of cash sophomore/junior year of the new born. That is a tax free return of every dollar you paid in - the insurance company covers your life insurance for providing that "float" for 20 years. ROI isn't remarkable but from a forced savings, cash flow and FAFSA standpoint it has some intangibles. Not unlike a tax refund - few people whine about cashing that check.
Also look at Room and Board - those costs are well above what a kid can live off campus pretty much everywhere. As long as it isn't ND where they are requiring kids to live on campus anyway.