It's really smart to max out your 401(k) because it's very likely that your company will match some part of what you contribute. If you contribute less than you are allowed, it's like refusing to accept money.
If I were you, my first stop would be the personnel office. Ask for all the literature they have on their 401(k). In particular, find out:
When you'll be eligible
What's the maximum you can contribute
How much will the company match
What the investment options are
New laws have made it easier for companies to offer you investment advice. If your company does that, take them up on it.