makewav for modern mac, or perhaps via web?

Hello all,

I have switched a few of my computers to mac, and now am realizing that I don't have the capability to run makewav.
Apparently, the version that's out there doesn't compile for me, and the binary throws this error:

Launch of "makewav" failed: the PowerPC architecture is no longer supported.

Is there a web-based verison of makewav/wplaybin, or a new version of makewav that works with modern Mac OSX systems?

-John