Discover® More® Card - For the first year you get 0% APR on balance transfers, 0% APR on purchases for the first 6 months, 5% cashback, plus the annual interest rate is the lowest at 11.99%.
Capital One® VentureOneSM Rewards Credit Card = it has 0% APR on purchases until February 2011, plus you get 1.25 miles per dollar purchase. No annual fee, no foreign transaction fees, it's perfect!