I agree as far as Black Tux for the men. That's where FH got his and his boys' suits. My girls got their satin dresses from Bellas Bridesmaids. We're in Las Vegas and I don't know how many physical locations they have but doesn't hurt to look.
I had a great experience with Revelry! All of my girls dresses are amazing (we are going satin). They all arrived on time, some even arrived early! I can't wait for them to wear them in my wedding. They have two different champagne colors in satin! Their customer service was also very responsive and helped me solve any and every issue that popped up! All of the dresses are final sale, so I do recommend doing the home try on!