Can anyone recomend a workflow engine / ui for C# Razden?

Hey guys,

something we are looking into is a workflow integration, which would allow the user to generate a workflow plan in the UI which is essentially a sequenced construction of database records and notification actions.

one i found a little while ago which i thought looked quite good was

but anyway, the question to the community, has anyone integrated a WF engine with Razden and / or have any recommendations?