We do not have a specific tutorial on using these three products together but here is an overview of how you could make use of them.
Create the form
use CSS Form Builder to create the form that will gather the information
Insert the data
Add in a DataAssist Insert server behavior to store the info from the form in your db
Send the email
apply Universal Email to the page to send the info in an email message
These would all be very basic implementations of the tools. We have a guide for sending the form contents via Universal Email, it can be found here in the Solution Recipes section:
Please post back with any questions that you have about any part of this and we will be glad to help you get it going.