Since signatures are disabled (thanks to spammers using them):
Gruntster Win32 build:
http://avidemux.razorbyte.com.au/ (http://avidemux.razorbyte.com.au/)
Lord Mulder Win32 mirror + x264 builds
http://code.google.com/p/mulder/ (http://code.google.com/p/mulder/)
Experimental build / VC++
Nightly (http://avidemux.org/nightly/vsWin64)
Test that one if avidemux crashes often, it may really help