Cinch and SizeUp. http://www.irradiatedsoftware.com/cinch/ http://www.irradiatedsoftware.com/cinch/ http://www.irradiatedsoftware.com/sizeup/ http://www.irradi

Cinch and SizeUp. http://www.irradiatedsoftware.com/cinch/ http://www.irradiatedsoftware.com/cinch/ http://www.irradiatedsoftware.com/sizeup/ http://www.irradiatedsoftware.com/sizeup/ Been using them for a few years now. I'm quite happy. The combination, after you configure it, is superior to the Windows implementation.