My apologies KSchmeck - the delay in reply for this was unavoidable. If you still need it, here's a package showing how the dropdowns would work/look on an adjusted submission form.
This should get you in the right direction if you're still trying to work this out. Let me know if you need more guidance on this concept. I used a custom SQL component to quickly grab PM users for the dropdown list. You'll need to update the project property PMConnectionString with your information for the test to work properly.
https://www.dropbox.com/s/q821pn8kylger48/SD.IncidentManagementSimple.EndUserRequestCopy.package?dl=0
https://www.dropbox.com/s/o8t2lmgaarbq90o/SDDropDownIntDemo.package?dl=0
Also, send me a private message if you want to have a quick webex to go over how this would work in your environment.
Sorry again for the wait.