Wow. I am flabbergasted at the length of this discussion! If anyone makes it down this far in the conversation, I'm from New Zealand, where it is generally pronounced as "Reh-zoo-may". The 'ay' at the end sounds like the 'A' in 'Amy'. the 'eh' sounds like the 'e' in 'get'.
And I was always taught that syllables start with consonants and almost never with vowels, so to all those who are saying 'rez-oo-may', you might want to move the Z when typing out your phonetic explanation.
A fascinating discussion, but as it is an adopted word, I will continue with resumé as the spelling I use, as the 'é' is used mainly as a pronounciation guide - as in 'café' and 'fiancé' - when adopting french words.