And depending on your needs, you could actually use the JSON to rebuild the cart however you'd like. 040 will make this even easier, but it's still possible in 032. (But if you're going to do it, I'd wait a few days (and cross your fingers) for 040 to be released.)
http://forum.foxycart.com/comments.php?DiscussionID=582&page=1#Item_7
See Mallmus' explanation.
Mallmus, thanks for that explanation. It worked to a T.
Peter
Meristem Design Inc.
Keeping in mind you can't actually customize the generated code from FoxyCart - but you can however manipulate it using JQuery or CSS...