Please let us which (if any) software you decide to go with, how well it works with TMC, and how happy/unhappy you are with the traffic reporting in your area.
By the way, since you are in UK, the CoPilot version for Europe is no longer available for the PC platform. It was discontinued by ALK few years ago. They now only have a PC version for the North American market, and I'm not sure about the availability of their Australian version.