javascript dialog libraries

I really like how dialogs work in various javascript libraries
(thickbox, lightbox, redbox, etc). I want to use them for ajax forms,
but haven't found any that work right with rails. Redbox doesn't work
right in IE. Thickbox is great, but has problems with rails I haven't
tried the yahoo widgets yet, I'm currently experimenting with

Anyone have any thoughts on which library is the best one to use with
rails? I need the ability to do ajax forms where I can update the
content in the displayed dialog.