The arcade bundle is the lower end release. It comes with the console, wireless controller, 256 mb memory unit, av cable and 5 xbox live arcade games (uno, pac man, luxor, feeding frenzy and boom rocket). It doesn't come with a hard drive, headset or network cable.
Here's a link to it on the future shop web site:
http://www.futureshop.ca/catalog/pro...0095079&catid=
The GH3 is the 360 version. It's the black les paul style wireless controller.
Here's the future shop link for it:
http://www.futureshop.ca/catalog/pro...0094413&catid=