Kate,
    One of the best museums I have ever been to, the In Flanders Fields
Museum in Ypres, Belgium, does its exhibits in FOUR languages - English,
French, Flemish Dutch, and German.  What they did was have a
graphic/artifact/whatever and then 4 columns of text below it, all
saying the same thing, one of each language.  Each language had a little
flag above it or other distinctive marker, and was in a different color
and sometimes a different background color as well.  I didn't find it at
all overwhelming and the system was easy to figure out.  By the way,
their website is also biligual English/Flemish; it is below if you want
to look at it.  It has contact information as well (under "Who is
Who?"), if you want to talk to them about specifics.  I hope this helps.

www.inflandersfields.be

Chris Kolakowski
Fredericksburg & Spotsylvania National Military Park (on sabbatical)
MA Candidate in Public History, State University of New York at Albany