Workflow Soluiton

I have some situations where I want to use my own ASP.NET or WPF user interface to collect information before submitting a workflow.

How do I accomplish this?

There would be a fairly complicated UI to collect information.

The workflow would decide who to route to based on some of the information entered. There will be several levels of approval.

I imagine an approver interface that will also use a UI developed outside of Workflow's forms builder.

If anybody has example workflows I could look at, that would really be outstanding. Thank you.

This can easily be done using the ExternalDialogStepComponent Component. This component will create a webservice in your workflow project which can then be called to retrieve information from the workflow and also allows you to submit information into the workflow.