To access the files on your Raspberry Pi on your Mac Finder you can install the appletalk protocol on the Pi by typing the following commands on the Raspberry Pi.
pi@raspberrypi ~ $sudo apt-get install netatalk
This lets you use the following (in the terminal on your Mac) to connect to the Pi
yourmac:~ username$ open afp:/10.1.1.10
Now you will see the Raspberry Pi appearing in your Mac Network where you will need to login on (default user/pass), to see access the files and folders.