Credit Card question

[UteStar]

I have a couple of credit cards but I am looking at opening up a new one for my wife (she is a realtor here in Utah) to be able to better track down all of her expenses. Obviously, I don't want a terrible APR but it is not a huge deal either because we will usually be paying it off every month. But, I would like to get a card with either good cash back or some kind of reward. Anyone have a card that they use for this kind of purpose?

[MikeWaters]

citi aadvantage is nice airline no-fee.

better is another citi card, I forget the name. 5% cash rebate gas/groceries/medicine, 1% everythign else, $400 limit.