I'm geeting married soon and would like to say "I do" in Irish. Can anyone help me out with a translation and pronounciation?

Kinda depends on the question.Will that be in irish? What's the actual text of the question?

Assuming the general "do you X take Y to be your lawful wedded wife", the answer will be Tógaim - I take.

Answering questions in Irish almost always uses the verb in the question.
If you are marrying in a Catholic church, a version of the ceremony provides for you to make a statement " I take you as my wife/husband etc.. etc..." rather than answering a question from the priest/minister. I don't know if other ceremonies have the same way of doing this.

But when I married, my (German) wife used the above form of words in Irish, and I used the german form. I could dig them out for you.