guestbook suggestions?

hi everyone,

i was thinking about adding a guestbook to this blog, and was wondering if anyone has any suggestions for good guestbooks? i'm not super website/html savvy, but i'd like to have one that i can choose the fields, filter/edit out offensive words or spam, that looks nice (maybe has different skins/templates/color schemes to choose from...) and hopeful wouldn't have too many ads that are obtrusive or too distracting. any suggestions?


=)