Mine is a credit, not a debit card; Chase Freedom. We don't carry revolving credit (debt bad!

) anymore, so we will set them up for online bill pay, and deduct the amount we spend each transaction from our checkbook register (I usually journal it as "Chase, gas, hide") so that the funds are set aside to pay in full each month.
Here's why I got this card: 3% cash back on groceries & gas up to 600/month, 1% afterwards and 1% on all other purchases. Caveat: grocery purchases must be at a grocery store, not a
walmart or target. I do The Grocery Game, and so it's much cheaper for me to shop at the grocery store than walmart now, so it works great for me.
OH-- If you wait until you accumulate $200 in rewards before claiming, they will give you a $50 bonus!
I figure by the time we're ready for our WDW trip (May2008 baby!

), we will have at least the $250 cash reward in our pockets!