This is the seventh of a series (the series is listed at the bottom) of "How To " Videos that I have created to show .NET Developers how to build document workflow in a SharePoint environment.
In this scenario, I take the workflow that I built in the How To Video on Building a Basic Approval Workflow (found here) by adding a second level (and you could extend it to multiple levels) of Approval based on a SharePoint Custom Column (Expense Report Total in this case). Although I built the "trigger" on the Expense Total column, you can build it on any number of other factors within the document, SharePoint Columns, or workflow activities.
Checkout my entire collection of SharePoint "How To" Videos:
~ Robert Shelton