Few questions for starting an audio setup

Hello, I am very new to the audio scene. I would like to invest in some speakers.
I would like a pair of bookshelf speakers, a sound bar, and a subwoofer.
However I would not know how to connect all of these together.
My list so far:
http://www.amazon.com/JBL-ES20-Book...560885&sr=8-1&keywords=jbl+bookshelf+speakers

http://www.amazon.com/VIZIO-SB3820-...TF8&qid=1459553732&sr=1-14&keywords=sound+bar

http://www.amazon.com/Yamaha-YST-SW...=1459553892&sr=1-3&keywords=samsung+subwoofer

http://www.amazon.com/Pyle-PTA4-2x1...qid=1459561452&sr=1-3&keywords=pyle+amplifier

Of course, this is a budget set-up and this would be placed directly in front of me (so no surround affect (no room))
If you guys have any tips on the selected hardware please change my list.
How I plan on setting this up:
1. Bookshelf speakers on either sides of my desk
2. Sound bar directly above both of my monitors
3. Subwoofer below my desk
4. Amplifier (or receiver ?) in the middle (Pics included)

A few things...
On my desk I have a PC connected to one monitor and an Xbox One connected to either
How would I go about connecting these speakers to JUST my PC ?

 

I would start with a good amp and speakers. JBL is a good brand.
The pyle amp may leave something to be desired though..

Marantz makes some nice 5 channel recievers that are compact and powerful

 

If you are interested in audio only you would be better advised to stick with a dedicated stereo system, surround receivers are fine for audio/visual