Originally Posted by methodman

I don't think you'll want to do a great deal of churning with your history. Make your applications count.

definitely the American Express Gold card (lots of referral options available) for 25,000 Mileage Rewards points, which you can turn into 25000 Aeroplan, or other options.

Even if you don't plan to keep the card for a second year, keep it at least 6 months. And keep making those payments on time.