What I need done is a new circuit board designed, firmware written, and
enclosure made.

Once you get a board designed, you can get them built he

http://www.tinymicros.com/embedded/pcbs.html
Summarizes the links below. The guy has used some of the places.

http://www.4pcb.com/index.htm
https://www.barebonespcb.com/!BB1.asp
http://www.pcfabexpress.com/contents/complete57.php
http://www.olimex.com/pcb/index.html
http://www.apcircuits.com/
http://www.expresspcb.com/
http://www.pcbexpress.com/
http://www.protoexpress.com/
http://www.1pcb.com/
http://home.flash.net/~yogii/

I do embedded software so I can help with the firmware once you're
at that point.

Sincerely,
Tom.
http://www.TomEberhard.com
http://www.kamoyatic.com