Opening a Roth IRA

Since I’m getting older or old, I guess I should start saving at sometime. I was reading about those who’ve opened a Roth IRA. Seems like it’s something I should do ASAP. Opinions?

Basically all I know is that there are “conservative,” “moderate” and “aggressive” investing packages. And that I can get it through ING fairly easy. Is that all there is? Push money and cross your fingers?