Road Wheels & Road Wheel Recommendations?

The more I read this evening, the more it says that the rim is where you want to lose weight rather than the hub - which makes sense as it's rotating mass

Keep reading, you'll eventually stop believing that.

The important question you should answer, which will lead you to making the right choice, is do you want to weigh your bike, or do you want to ride it? If you want to ride it, and especially if you want to ride it further/faster/higher, then pick wheels which are reliable, have low aerodynamic drag and mount your chosen tyres in a way which enhances ride and handling while reducing rolling resistance. Once you've got all that sorted, you'll find out what your wheels weigh. Picking an arbitrary target weight and trying to hit it at the expense of other things gets you bragging rights on the weightweenie forum, but you end up with a slower bike which is less fun to ride.