What would be a good credit card to start building credit? I don't know what a "low" rate is, but mostly what I care about is that it costs me as little as possble (and not just during the "intro period" and I can pay it off every month online with my atm debit card (I've been able to pay for stuff online before with the debit card, so prolly not much of an issue there). I might try getting a card though my bank, but I'm not sure if their rates are good or not. I don't give a crap about rewards or any of that junk. I'll probably use it as little as I can and still have it build credit- I'm not going to go all crazy with it.
I think 22 is prolly getting to be too old to have no credit history. 
If you intend to pay it off in full every month, the interest rate does not matter as much as the no annual fee.
I think that
Wachovia and
Capital One are pretty good for both.
I think that you can set it up so the payments are made automatically every month from your bank account, assuming that you have a checking account to go with your debit card. I think that you can even set it up so the payments can be made with your debit card, but I don't have one, so I am not as certain about that.
Like Tesla said, making the payments
on time every single month is very important in building your credit score.
Semicolon, where are you? We miss you!