You're probably going to get one of the worst websites in the world if you're only looking to spend that much. Web designers usually charge anywhere from $50-$120 per hour, depending on their skill level and the things you want done. You're probably looking at closer to $800-$1000 for a modest site with a shopping cart. The site you linked to would most likely cost you thousands of dollars.
Having said that, my vote for a web designer is at
http://afterhoursdesign.net/