If you want to diversify your hotel programs, an easy answer right now is Hilton with their instant gold trial. If you have a Visa Signature card, you can get instant HHonors Gold status until 8/31. If you make 3 stays before then, your status gets extended until 2013. That way, you can continue to enjoy your Hyatt Diamond benefits, but have a quick and easy elite backup for those locations that don't have Hyatts.