MyCokeRewards has some good selections at reasonable points levels. But e-rewards has a good selection, too.
e-rewards also has other discounts and freebies that you can get, simply by completing online surveys every once in awhile. Or earn at a faster speed by completing more surveys! Magazines are my favorite reward, but you could also redeem for flight or hotel points credits, movies, food, and other items.
Sign up at e-rewards. Based on your profile information, you will receive email invitations to participate in surveys for credits. You don't have to accept every survey request they send you. I have gone long periods of time without completing any surveys, just because I was not in the mood.
You can spend your accumulated credits whenever you are ready.
Go take a look at what you can get: http://www.e-rewards.com/rewards.do