What is the best Website solution for my school?

I don't really have an answer for this question. My school is in a rural area. Many students do not have access to the Internet and if they do, a large percentage of them still have dial-up access. Our website is simple and straightforward. There are very few graphics. It is primarily information (text). This suits the majority of the student body and their families. Because of this unique situation I feel the site is sufficient for them. I would like to see the day where we have a more interactive site with both teachers and students involved, one where teachers actively post and students can access it easier. Our growth for both staff and students needs cultivation.