On Apple's MacBooks, you can choose in the settings when a mouse right-click should be emulated with the trackpad, either a click in the bottom right corner of the trackpad or a two-finger click. Actually, both are helpful and there is a hack to turn on both options at the same time.

Run the following commands in a terminal:

defaults write com.apple.driver.AppleBluetoothMultitouch.trackpad TrackpadCornerSecondaryClick -int 2
defaults write com.apple.driver.AppleBluetoothMultitouch.trackpad TrackpadRightClick -bool true
defaults -currentHost write NSGlobalDomain com.apple.trackpad.trackpadCornerClickBehavior -int 1
defaults -currentHost write NSGlobalDomain com.apple.trackpad.enableSecondaryClick -bool true
defaults write com.apple.AppleMultitouchTrackpad TrackpadCornerSecondaryClick -int 2
defaults write com.apple.AppleMultitouchTrackpad TrackpadRightClick -bool true

I found the tip in Emanuel's blog here.