I'd like to try every one of the suggested comps. Comps, especially for a particular color in addition to function, are such a personal choice. Your budget for each piece doesn't get you a number of the best suggestions, but it gets you out of the strata of bad examples of the types you want. Of the suggested pieces I have tried, I did not like the Fatso. I was never fully convinced that it was doing more good than harm. I do like the Vari-Mu, but it might be a little soft for your genres, and is out of your price range. The Nu-Mu is less expensive and promises to be tighter in the low end, but I haven't tried it. I have not liked some VCA comps, but I do like some SSL types. It's a matter of taste, so I can't offer much there. Same with Opto... There aren't many good stereo examples. I have a Revive-modified ART VLA that is really surprising, but that's a convoluted path to follow.