What would YOU choose?

I am 99.9% sure I will have a speaker upgrade in the next few weeks. I am going from the Amphion 3LS to the 7LS model. (I also have a stereo pair of Rel 8/12’s) What are the forums thoughts on new cable for the speakers? I currently have a 2 meter pair of TQ Black II, so nothing esoteric, say in the £500 budget ($650)