Eric06

580 will give you 1080p experience at med/high without problems, like a 1060 but with 8gb vram. Better than a 1060 if you think on gpu+monitor combo (freesync use to be 100-150$ cheaper than any gsync panel) 

So for mid budget a rx580 is a really nice choice.

Buy it.
Buy it.
 
In this market while we are waiting to see the new generation of cards, it's worth it to jump on.
 
RX 580 / GTX 1060 replacements won't be around in the near term, so go for it.

If its really 8GB model, then go for it.

230 is pretty low or it’s common price nowadays, check what model and what it was used for. And is it a 4gb of 8gb? What games do you play?

I would be a massive improvement but if you waited for new cards you could get a even better deal 

Yes.

pretty much an ssd for a boot drive for general use, go pick up an MX500 240gb for $60 or so. a 1060/580 should work if you're also gaming.

Get the SSD this system desperately needs first. A cheap 100 dollar or even 60 dollar SSD can really make a night and day difference on a system.

Try getting a hold of Colton aka @CPotter https://twitter.com/colton_potter on Twitter or PM him from here or contact  @Slick or @nicklmg via PM

Thanks for your advice. I really appreciate it!