Your advice on a good cable

Here is my curent system: YBA 2 Preamp, YBA 2HCDT AMP and JMlab Mini Utopia speaker with a Cambridge CD6 player. What brand of interconnect and speaker cable you recommand to take the best out of this setup. I had in mind to buy transparent ultra cable but some people in audiogon think that they are overpriced and not good (ref: Hall of shame)

Thanks for your help.
And please dont tell my to buy 10K$ cable Im not rich :)