Assalamu alaikum. We too moved out from the UK, we have 3 young children. Personally I feel there are good British schools out there however they do not generally offer Arabic or Islamic studies and the majority of the students would not be Muslim. The Islamic side of the education is therefore more of an after school thing. There are many places offering hifz and arabic classes. Also there is at least one saturday school which does classes on Islamic studies along with sports for the boys. I have personally found the childrens academic education to be one of the biggest compromises as they were at a very good private Islamic school in the UK.
Regarding community, there is but not in the same sense as in the UK, you don't find an "area" where the Muslims tend to live however people get together through classes and of course there are mosques everywhere. Hearing the adhan all the time and the buzz during ramadhan and eid are great.