I need help finding a Tuxedo for my wedding!?

I am getting married in June of 2010 and I need help finding a tux. My fiance and I have decided on having emerald green bridesmaid dresses, therefore, my vests and ties will be emerald green as well. I would like the groomsmen and I to wear a tan or khaki colored tux, but I don't know where I can find a good one? Does anyone know a good khaki tux?