Can I set up my PDF form with a submit button that will email the completed form to me - I don't want to see the responses collated in a table as I need to file each completed form electronically per client?
Yes, but it would not have anything to do with FormsCentral. The simplest way to do this is to use Acrobat to add a button that has a "Submit a form" action for the Mouse Up event. The URL should be a mailto type URL and you should select "PDF The Complete document" as the Export Format:
If it needs to work with Reader prior to version 11 and/or includes digital signatures, you will have to Reader-enable the document with Acrobat. Exactly how you do that depends on which version you have:
Acrobat 9: Advanced > Extend Features in Adobe Reader
Acrobat 10: File > Save As > Reader Extended PDF > Enable Additional Features
Acrobat 11: File > Save as Other > Reader Extended PDF > Enable More Tools (includes form fill-in & save)
Also, realize that submitting by email is not all that reliable. It simply won't work for many people as they don't have a desktop email client properly configured. There are also Acrobat licensing restrictions that come into play when you Reader-enable a document with Acrobat and make the form available to more than 500 recipients, as you do when posting to a web site. Submitting the form to a web server, as is done with FormsCentral, avoids these issues. If you need a filled-in form with FormsCentral, you can alsways export the form data and use various methods to populate a blank form. If you want to pursue this approach, post in the Acrobat Forms forum here.