I know this is a bit late, but we just got back from a week away.  I hope
this helps Pierre now, but if not, at least it will be in the archive.

Try www.cycletote.com for trailers of all sorts.  We own one for the kids
and are impressed with the quality.  We looked at the Burley trailers and
like them because they fold down to a smaller size, but this trailer is just
as sturdy (possibly even more so) and was much less expensive at the time
(we bought it used from the original owner, very well taken care of).  I
think that the standard retail pricing is about the same as for the Burley.

Hope this helps!

Mark
82 Westy