Wedding Vows with religious/God sensitivity

Is the pastor requiring you to include god in your vows, or is your fiance requiring it? If the pastor is requiring it, I might talk to your fiance about finding a new officiant. If it's your fiance, then you need to really talk things out.

What about something like "I thank God for bringing the two of us together"

Are you doing any reading from the bible Maybe use those.

Can you slip in a pledge of allegiance, "under God." Like, "I stand before you under God and promise..."

At our ceremony, we had a number of blessings that mentioned God in the original Hebrew, but got interpreted in more universal ways. For example, for one that literally translated would have been, "Blessed are You, Lord, our God, sovereign of the universe, who created everything for His Glory," we used "Blessed is the wonder of creation, the earth, the provider of all things." If this sort of thing would satisfy your requirements, you can check out our ceremony at this link for inspiration:

http://sites.google.com/site/2dbride/ceremony/ceremony-text

Do you have use the word "God" specifically? Maybe describe God in a round about way if you don't have to say it, so it's a more generalized reference. I wouldn't want to include it in my vows though just to appease others. These are your promises and vows, not others' ya know? They should respect that I think.

I wish I had better advice for you =/

Google non-denominational vows and wedding ceremonies presided over by UU ministers. Both will get you a bit broader interpretation.