Brainwashed, I posted earlier this week on the subject. I titled my post 401k vs pension. If you read the post then you know I think the pension fund will be phased out in the next 10-20 years.
In my opinion this may not be a bad thing as long as UPS can give us a match instead of a pension contribution. If your 21 years old and you contribute the max that the IRS allows( I believe it was 15,000 in 2006) for the next 30 years at 10% growth, you'll be very wealthy and will be able to retire more comfortably than under the UPS pension plan.
On the other hand, if you do this and the pension plan is still in existence when you retire, you will be able to afford your children a great education and a nice inheritence.
So plan for the worse and the best just might happen