So you'll be submitting new items to a SharePoint list?
Here are some links to help you.
http://www.infopathdev.com/blogs/matt/archive/2006/02/02/Add-SharePoint-List-Items-with-InfoPath.aspx
http://blogs.msdn.com/b/infopath/archive/2007/03/26/submitting-to-a-sharepoint-list.aspx
You could also accomplish this via qRules.
Good luck!