I'm a 20 year old college junior, was in your same boat. When I was like 17 I got this insane lust for American Express cards. When I was 18 on my way to my freshman year, I convinced my dad to make me an Authorized User on his Business Platinum account. In my book, being an AU on a "perfect" (payment history, etc) account is the best way to get your foot in the door with AMEX. As an AU, the primary cardholder is responsible for whatever charges, and the card doesn't show on your personal report, but it will establish you a relationship with AMEX.
I also opened a secured account from BofA with a $500 limit. After 12 months of perfect history on both, BofA unsecured my account. The next month, I got ambitious and applied for the AMEX Premier Rewards Gold and Gold Delta Skymiles card, and was approved for both.
Do you have any family that could make you an Authorized User? I'd make this my first step, then get whatever basic card Wells Fargo will issue to you. Only let it report with about 10% utilization ($1000 limit, only let it report with a $100 balance) and for god's sake, pay in full
AMEX likes to see you can handle credit well with others, but once your foot is in the door they will fight for you as a cardmember. LOVE my Amex cards & experience thus far.