I'm looking at how best to implement a 6-10 page form. One option is to build it entirely in SilverStripe, and another option is to integrate with one of the existing (hopefully PHP5-based and similarly architected) complex form packages out there.
Do people have experience with the form packages out there to help me wade through the myriad of options...
It's quite simple, because it uses the existing SilverStripe Form API, and abstracts each step into a separate PHP class that knows what step is ahead of it, so pressing "Next" in the form takes you to that step.
An example of it in action: http://kiwiselect.co.nz