Hey Michael,
If you're still looking....I work about a mile from you. I'm at Plano Pkwy and Coit area. I've got a Pioneer/Premier unit in mine....with an MTX amp, JL Audio sub box w/ 2-12", JL Audio 5.25" in front door and some older Clarion speakers in the rear spots.
I too went with sound clarity and quality...or tried to. You are correct, most of the stuff on the market is garbage. There is some nice stuff, but no on locally (DFW) seems to stock it. All they have is the garbage.
My all time favorite headunit was a Clarion that was recently stolen...or the faceplace was. It was a preamp only...no power in the unit itself. It was top notch...the specs were really nice as it used high quality Burr Brown D/A chips. They're top of the line. Also, the fact that there is/was no amplifier section in the unit, heat and interference was kept to a minimum. I really hated to loose that one.
I replaced it with what I could find under $500, which was a Pioneer Premier unit that too used the Burr Brown chipset. It's not quite as nice, but I'm happy with it.
If you'd like to hear/see it, let me know and I'll meet you any day....
m