Tor Haxie
torify is a nifty LD_PRELOAD hack to run a proxy-unaware command line program and direct all network calls over a SOCKS connection to Tor. It would be nifty to use one of the various haxie frameworks to do the same for GUI apps (or the reverse, to de-proxy specific apps) since cocoa networking frameworks use the global system preferences proxy settings instead of per-app ones.