If you do decide on them, as previously stated any comic book store would have them. However I know that Amazon has plenty of options as well regarding size. Current comic size is 6 3/4 x 10 1/2, Regular size is 6 7/8 x 10 1/2, Golden age is 7 1/2 x 10 1/2 and Magazine size is 8 1/2 x 11.
