Best retirement plan for 30 year old?

I’m almost 30 and I have not yet started planning financially for retirement. In the next month, I’ll be eligible through work to start a retirement plan, but I have NO idea what I’m doing or the difference between the options. I make around 80K, have a 10k/yr child support obligation. Any suggestions?

Here is a business week article that may help.

Just remember you have time but start investing now!
IRAs are a great idea for your child… they have education IRAs so you can plan for college now!