There’s are tons of form submission scripts lingering out there. Some are good and some pretty dismal.

On this site I use the cforms plugin for Wordpress. It’s the best form integration plugin for Wordpress by a long mile but as you may expect with something so robust, the configuration of complex forms can be tricky to the inexperienced.

There is another form application out there, however, that I have just started playing with called MachForm. While not as robust as cforms, and not free at $39US for a single-site license, the balance between functionality and ease of use is very good. It’s not a plugin but is easy enough to set up if you’re familiar with setting up a MySQL database and uploading files to your web server. It’s heavy on the ajax so adding fields and configuring them is about as easy as drag and drop. The connection to a MySQL database allows the ability to save form submissions and the slick admin interface makes downloading your data a snap.

*Added bonus - While not built into the admin as of yet, the ability to create forms in different languages is fairly simple. More information on that in their support forum.