Documents needed to marry in Argentina


Hi there, my name is Nathan. I am from the UK and am planning to marry my fiancee, she is Argentinian in Buenos Aires in a months time.
I am having a lot of problems finding out exactly what i need in terms of certificates and documents to get married?
Ive never been married. So far i have a certificate of no impediment and my birth certificare which i will get officially stamped in the UK before i leave.
What else should i be needing to think about before i leave the UK so i have no problems.
Also my fiancee is living at a new address in BA. Shes only been there about a year. Will that be a problem?
Please if you have any help it would be very appreciated.