Also, just as a sidenote… if you have a Squarespace account and decide to leave, you only get your images and content. They own the templates so you're left with an unformatted website. That's not very nice!
With Graphic Gato, your website is yours! You can take it to any developer and they'll be able to pick up where we left off… we hope it never comes to that, but we felt you should know that you always have options! Who doesn't like options??