Help with Cable selection

Hello All - 

This is my first post on Agon.... and I have a question for the group and would love some feedback.

I have have recently upgraded my system with - PrimaLuna Dialgue HP, VPI Prime with Dynavector 20x2L, and a pair of Sonus Faber Olympica III's. The question is......my current inner connects are cheap AudioQuest Big Sur's and speaker caber is Kimber cable 8TC. What would be a recommendation in which I would hear an appreciaable difference with for both inner connects and speaker wire without breaking the bank!

Thanks in advance for any insight and guidance.

Regards,
Jeff