If you can score a pair of used Straightwire Maestro II, you'll be pretty thrilled. Why those? Well besides great materials (teflon, ofc stranded copper, blah, blah), the two signal conductors (in each cable) are separately shielded, which in balanced configuration gives black background and great transient response (as long as you aren't running 8 meters!)
Best Balanced/XLR Under $200
Just bought my first preamp and amp with XLR in/outputs (Rotel RC-1070 and Rotel RB-1080), so I'm curious to give it try. Currently connecting the two with Analysis Plus Oval Ones, which seem okay. I'm thinking about Audioquest King Cobra or PS Audio Statements but am open to other suggestions.