Computer Motherboard Prices What Is The Best Processor/motherboard To Get If My Price Range For A Whole New Computer Is No More $800?

What is the best processor/motherboard to get if my price range for a whole new computer is no more $800? - computer motherboard prices

I try to have the best equipment I can and I will get built. I am a player and want a computer for the last two years or more.
My budget for the entire company (without keyboard, monitor, mouse or speakers) is 800 or less and only wants the best motherboard and CPU time and get to build from there.