Iconoclast makes really nice cables. Not the most flashy or the best marketing out there, but quality cables regardless. They are a bit overpriced in my opinion (along with many other brands), but nobody can argue they don't make exceptional cables.
Lots of brands have free in-home trials. I recommend taking advantage of those to get something else that interests you in your own system for a few weeks, to see how it compares. You might find that you like your existing cables the best. Or you might find something else that fits your stated preferences without spending a fortune.