I used checksunlimited.com also. My checks alternate between: Lady and the Tramp, Bambi, Tink, and Cinderella. The prices are really good(definitely better than the bank, since they have a markup). I used to work in the forms industry. Make sure you go with a reputable company that is recommended to you. I have heard of problems with the MICR ink that is imprinted at the bottom of the checks not reading properly. Just keep that in mind.
I have never had any issues with Checks Unlimited or Checks in the Mail, but both of these are owned by large check printing companies who also service banks.