I have both Reaper x64 and x86 running on windows 7 here. I still mostly use x86 as many of my current fav plugs don't come in x64 versions. That will change in time, I'm sure, and the only real problem I have is with VSTIs. Please join the for now relatively small choir and take some time to needle, badger and goad. The plug-in devs need motivation. :D