Adam, I have successfully installed Tunnelblick and added the configuration files as per instructions. Added OpenVPN to my account and connected with no problems.
Am I right in thinking I no longer ever need to connect by the previous method? I like the Tunnelblick setup because you can choose which server to connect to really easily, without having multiple setups in OSX's VPN configs.
BTW I went for the 160 bit rather than 256 bit. Presume that's ok? Giganews say its faster than 256?
I have to say this OpenVPN seems hyper-fast.
Virgin Media 100mb + Giganews Diamond + VyprVPN + NAT + OpenVPN + Cisco E4200 = faster than light internets.
ThanksPM'd