Mattblack,
I've done my PPL exams in Belgium last year. I beleive they have several language options, including english (due to the fact they are multi lingual as a country).
I'm not sure if you can study at home and go for the exams, since my theory intructor signed a paper that I attended theory classes there.
Anyways, you have to contact mobilit.fgov of belgium:
http://www.mobilit.fgov.be/nl/index.htm (dutch or french only, unfortunately)
I checked to see if there was any way to see what languages they use for the examinations, but I found no reference. I'm sure there were 3 or 4 options though (Dutch, French, German (?), English (?)).
The examination itself is a lot more flexible planning-wise then the Dutch examinations. I believe that in the Netherlands there are only 3 days in a year where you can go for your examinations, while in Belgium you plan it together with the Mobility office. A friend of mine who flunked two (out of nine) exams went back the very next day
The main thing however is the fact that you will also need an attest that you have done the theory course with an instructor, not sure if that is feasible for you?