Just saw a passing tweet from Uwe Muegge about internships at the International Criminal Court which include internships for translators and interpreters (standard UN official languages including one, and ideally both, of English and French). Site is a bit bare of information but interested readers may want to investigate.
There was a nice piece in the ITI Bulletin this month by a graduate who had done a translation work placement at the Directorate-General for Translation in Brussels. This is a really good scheme and applicants who meet the criteria (BA degree in hand; two source languages including one of: English, French, German, etc.) should consider applying. Applications for next autumn open on 3 January 2012 and close on 31 January 2012. (see details under 'When?').
For more details of internships past and present see the EU institutions and work placements tags on this blog.