I live for this...
Here is my gaming setup. Wife hates it cause it's "ugly"..whatever.
(I used to buy and sell used Industrial work equipment.)
The desk is a Industrial work table, Extra deep and no legs up front. Buttons on the right side move the table top up and down. (..I have actually raised it to chin level so I could set my head down and keep playing

<don,t tell my wife> ). I can play from sitting on the floor (no chair) to standing up chest level.
My Chair is a Herman Miller Aeron chair...these things were like $1200 back in the day. I got a guy to 'throw it in' on a deal for free!! (He obviously didn't know what it was ..... or, more likely, didn't care). HIGHLY recommend this chair (If money is not an option OR you can get it free)!
Three 24" dell monitors, i7-950, wireless keyboard, Logitech G9X mouse, yada.... (I can post a better picture of the desk and chair later if anyone is interested, this is the best pic I have available. I am posting from work)
Here is a 'Screenshot' I took a couple of days ago...
Here is my goal...it is GOOD to have goals (That is a Herman Miller chair in this pic):