You didn't specify what range your annual spending might reach. If you would reach $15,000 total spending for a year you might consider the Virgin Atlantic American Express card from Bank of America. You get 1.5 miles per dollar spent on all purchases, and if you reach $15,000 spending in a year you get 7,500 bonus miles. So for $15,000 a year spending you would receive 30,000 miles. While in theory you can use the miles on Continental and US Airways, I think the best use of the miles would be in flying to London on Virgin Atlantic. There is a special on flights from New York to London at this time for 29,500 miles (round trip coach). However, Virgin Atlantic has very high fees for mileage travel. So you could get a round trip for about one years spending plus $300-$350 dollars. The annual fee is $90.00. You will have to pay the next years annual fee to get the 7,500 bonus miles.