Do you know any good prom dresses site?

http://www.lovenewyorkdress.com/prom-dresses_c86.html - new york prom dresses - The dress I particularly want is a dress that is short in the front but long in the back, you know a train. I want the dress to be white or white and another color. I prefer the dress to have straps although it dont have to be that way because thats how alotta dresses are made, strapeless.