Juanca,
I would recommend contacting the National Instruments office in Barcelona at +34 93 582 0251. By doing this, you will be able to talk to one of the sales representatives who will be able to find out some details of your application and give you an overview of the products and services we have available.
The website for NI Spain can be found at:
http://digital.ni.com/worldwide/spain.nsf/main?ReadForm