sarees in america? where to buy one! help please!?

Question

im going to a wedding that is very traditional indian style. the dress code is is very traditional indian. so a saree it is for me! im excited as i have always thought sarees were very pretty and feminine, but i have absolutly no idea where to buy a quality one here in the states. also, are there any do's and donts when it comes to picking out one for a wedding? any colors im not allowed to wear? a certain way to wrap it? help me out please!