Explain it to me like im 4 please? dedicated line

Thanks for the help in advance.
I am building as we speak my dedicated room, unfortunately the dimensions werent flexible but everything else really is.
My room is:
11.5 wide
27 deep
9.5 high, (cathedral)

My system consists of:
Proceed Avp-s
Linar 250 Amp
Wadia 23 Source
Levinson 36 DAC
Nautilus 804
Nautilus HTM-2 center
Boston VR-MX surrounds
Phillips 963 DVD

Cabling:
Transparent Reference balanced 2 pairs
Transparent Super Bicable LCR

Power:
PS Audio PS300 MW with all blackgate caps
Shunyata Sidewinder
Michael Wolf Gain
Synergistic Research a/c Master coupler

Treatments:
2 14x48 bass ASC Bass Traps

My Basic question is...
I have NO CLUE about wiring, i am planning on at least 4
dedicated circuits and have researched dilligently in the forum here, but im totally lost.(1 Source/preamp, dac, transport. 2nd for amp. 3rd for multi channel amp. 4th for video.) also, all lighting and other outlets will be on their own circuits.

I have read alot about isolated grounds and stranded wiring as being the way to go.

I live in seattle so i have basically every opportunity to
get what i need for wire, but after reading everything i still have no idea how to physically install this, nor do i have any idea when i look at the store to pick the exact wire i need. (what type of shielding, stranded vs. non-stranded) etc etc etc.

Luckily my electric panel will only be about 18 feet away from my components (all wiring is brand new)
Can anyone explain to a total wiring novice how to
physically wire this?
Maybe a picture or two?

Will hospital grade outlets be what i need or do i need to go further?

If anyone would like i can send pictures of the framed in room so they have an idea of what im looking at.

I have installed 2x6 walls and ceilings and am going to use 5/8 sheetrock with blown in insulation in the ceiling.
Should i use a heavy texture on the walls and celings to reduce reflections?

All help will be appreciated more than you know.
Thanks again.
Greg