In the debian build enabling SSH is easy, simply
sudo mv /boot/boot_enable_ssh.rc /boot/boot.rc sudo service ssh start
Access the RPI via SSH
Having secure remote access to your RPi means you can access it for any computer on your network or if you configure your router properly from any computer via the internet.
If you do want to access the RPi via the internet, make sure you at least Setup:RPI#Change_Default_Password Change Default Password and ideally AddingUsers:RPi.