Since you are starting out on the road to building credit, I would guess that the APRs being offered to you aren't worth a damn (i.e. 21% or so). Many contain annual fees, and penalties for late payments and such are pretty stiff in those cases...read the fine print.
Like the others have posted, get a card through a bank. Better yet, a debit VISA or MC. Unless you plan on renting a car, or charging for stuff regularly, I would steer clear of traditional credit cards for now.
It's far too easy to charge up to the limit and get in trouble in short order...run away from the dark side!!!
