Budget desktop setup under $200

[blackjakals]

I'm currently looking for some new speakers, either passive or powered, between $100-$200 a pair for casual desktop use in a small bedroom. I will be using be it for music, movies, and games alike. I just want the best possible sound for my budget, no more. I would prefer new, but for the right speakers, I would consider used as well.

I currently own a set of Infinity SM65 bookshelf speakers and they are hooked up to a Sony STR-DE597 receiver as well as a Micca Origen G2 USB DAC/Amp and PC. The receiver is there just to connect the bookshelf speakers and the receiver is being outputed from the Origen DAC as I wasn't sure the DAC or the headphone amp in the receiver would be sufficient.

My system sounds absolutely great as it is, but I am always looking for better sound. I am just not sure I will get it at this price point. Powered speakers (or studio monitors) are what I want the most as I want to save space, but if bookshelves are the better option, I will go with that. Here are the questions I have regarding my current setup and possible new setup:

1. Has anyone heard the speakers I currently own and how would they compare to the current offerings out there within my budget?
   
   
2. Between these speakers, which would be better for my setup?
   
   • Sony SSCS5
   • Klipsch R15M
   • JBL LSR305
   • Polk TSI100
   • Presonus Eris 4.5
   • Edifier R1280T
   • Edifier R1700BT
3. Should I just keep my current setup and add a subwoofer instead?
   

Thanks for any input provided