Old windows xp unit - couple circuitboards, power supply, and drives. Where to begin?

Im always one of those people that want to maximize profit when scraping. Ive done pretty good with that on the general yard side of things. Ive never dipped my toes into e-waste although id like to begin whenever i come across things like this. Ive scanned the forums and seen the scores. As someone who is passionate about things like software, coding, bitcoin and anything computer in general, id like to grasp the concept of the recycling market.

Im more of your basic scrap metal guy, always tear down to bare parts and seperate metals and motors. Today i came across an old xp system that seems to be a business machine. Tore it down and saved the hardware, figured i could sell it off to somebody. Forgive me for the noob questions but where should i begin? How can i identify the market for these kinds of parts and what use they may present? Is it best to scrap gold from boards or sell them to somebody that may use them?

ICP electronics power supply - ACE-920AP
Deskstar harddrive - 01/2004 41.1 gigs of storage
2 boards
2 small cooling fans
RW52-32-52 CD drive
Sony floppy drive - holy throwback

I appreciate any kind of advice of critisism. Thanks again! I'll attach some pictures to further guide my explanation.

https://docs.google.com/document/d/1...dT910zUNPkEcWA