Hiya, you may see a couple of us along soon.
In Bahrain for six months now with 3 dcs 5, 3 and baby and really like it. Lots of places you can look at for your son and daughter - assume you want kindergarten for him? The main UK curriculum schools are St Christophers and The British School, both of which take 3 year olds into kindergarten onwards. Both are good. You may have missed the boat for them this year but not too late to get him on to the wait lists and at least on the list for Reception. Google St Chris to get the website but British School is www.thebsbh.com. The other options for kindergaten are Little Gems, British Prep.
Lot of europeans and antipodeans and americans here. Quality of life good, healthcare good, assuming you'll have private care, shops okay - not UK standard supermarkets but you'll live. Other shops are many and various in the big malls - H&M, Next, M&S, Debenhams, Oasis.....
It's great for young families, lots and lots for young kids but not so much for teenagers I reckon.
ANyway, happy to answer any specific questions that you may have after that mammoth post!