Accessibility of My Website

The biggest accessibility issue I will have with my website is one of language barriers.  I have several families who speak foreign languages and my website will be written in English.  I don't want to discriminate against these families because they speak a language different than myself.  I have researched about how I could solve this accessibility issue and found that Google translator can make my website viewable in many different languages.  The only issue with this is that I know the regular Google translator sometimes doesn't translate quite right and I know this is a potential problem for my website.  I will probably get my site translated and have an interpreter look it over to check for any major errors.  As far as families with members who are disabled I don't have any that would need text readers or other assistive technology.  I do want to make sure that my site is understandable and robust though.  I want to make things as clear and intuitive as possible so even novice internet users can get around with ease. I also want to use large enough print that the website is easily viewable to people who may have poor vision.  I also want to make sure that my website doesn't use any Flash videos as I know that many of my families will be accessing the site from iPhones that can't use Flash.  After I get the site up I will send it out to parents to "test drive" and will get feedback about what worked and what didn't, what was confusing and what could be better.  Hopefully this will help to make my website as accessible as possible to my target audience, the families of my students.