I am running Windows 32 (But have AMD64 dual core machine), but could, if required have a version of Linux using virtualisation(I must install this).
The most simple way at present is to have different language binaries(e.g. bitcoin_en.exe, bitcoin_zh.exe etc.). Please post when you want this translated, this would mean there could be a dual language release for the next version (Why not a tri-language release, you do speak Japanese no?).