Airport & Sonicwall (VPN) on same internet line (Rogers) - Bridge mode?

Looking for some collective thinking.  We want to set up a remote network that will share an internet line from Rogers (Cable ISP) Using a Hitron Modem.  The modem will distribute internet to a new Apple Airport and should also distribute internet to a Sonicwall TZ210 which will be used to VPN back to a private hub and spoke Network.  We already have the Hitron modem the Sonicwall and the Apple Airport and are wondering what would be the simplest and most reliable setup.  The Rogers modem has the ability to act as a router or can be set to bridged mode.  I've read some similar setups using a Hub after the router.  Any Help would be greatly appreciated as to the specifics of what each one of these devices should be set to and why.