Here is a link to the one I chose. You can find it on eBay, Nordstrom, and other places, just google it! I am actually selling mine which is in excellent condition, $75! Email me at firstname.lastname@example.org if you are interested.
Also, VERY IMPORTANT, if you find a dress you love but it's out of your range, try Recycled Bride which has gently used dresses and you can easily search for the exact style you want.
I also found a few recommendations from Refinery 29:
There are a lot of great dresses on J. Crew, wonderful silhouettes and great fabrics. $495
I love this style, it's unique, a little retro, and great length to show off some stunner shoes! $405
This could be your dress for a beach or more casual wedding, or it could be the fun reception dress. The price makes it easy to afford a costume change! $475
This is good for someone who may be a little more conservative, or going for a retro feel. You could really jazz this one up with a belt in an accent color. Love this silhouette. $368
Tea length is very popular now. And this dress has a great retro vibe. A simple alteration could turn this into a sleeveless dress if long sleeves isn't what you are looking for. $249.99
This is one of my favorites. It is simple enough for a casual wedding or costume change, but it can completely stand on its own. This is a stunner! A great hair piece and fab shoes... Oh my! $450