australian degree to be recognised

hi all

i am married to a spanish girl and have residency and can work in spain, now i want to see if i can get my degree homologated. i have a science degree from an australian university - can anyone give me any tips on how i go about this? eg what exactly i need from the uni, translated, stamped etc

like many other things here it seems hard to get a straight answer.

any help would be appreciated.