Need info on best way to do a slideshow with long captions

Actually it is a gift gallery and will need to also load quite a bit of text. I love the way Stringy’s gallery looks but didn’t want to start investigating whether I could modify it to suit my purposes until I checked to see if there is a better way to accomodate long captions.

Some images will undobtedly be vertical, others horizontal. Captions will need to accomodate at the least bold.