Nagisa let us know in #pcsx2 that he released a new version of his great ps1/ps2 pad plugin,this time adding a x64 build as well!
Here's the changelog:
v1.7:
-Changed to DirectInput9.
-Fixed PADreadPort1/PADreadPort2 API.
-Fixed the confusion about PAD1/PAD2 settings.
-Added x64 DLL.
You can grab the source along with both x32 and x64 binaries here: http://www.ssspsx.com/