Cost effective power cables recommendations, low and high power

I recently watched a number of informative videos about AC cables for our systems. One by the Dutchman Hans Beekhuysen (sp?) was really very good and explained why they matter, even with so many miles of cheapo cable bringing power into our homes, it seems to be all about reducing and rejecting stray interference from a lot of juice passing through the cables to our componenets, and the effect this might have on nearby interconnects and so on.

So I thought I would ask for recommendations from users here on what power cables you use for amplifiers (higher power consumption) and other components like digital stuff or preamps and so on, what are you happy with and that seems to make a difference big or small.

I am not about to spend thousands (or even many hundreds) for power cables, so hopefully something in what we mere mortals who work hard to earn our money can typically afford. Well shielded, properly twisted and insulated cable that does the job well, without typical marketing bull or obscene prices and markups please!