Another great post with good advice! I was remiss to not mention model numbers for my comparisons.
Dustin - If it makes you feel better, I taught myself how to build kickpanels out of fiberglass so I could mount the tweeters as close to equidistant from my ears while in the Driver's seat. Had to bend the e-brake pedal too. Came close to making the parking brake electric, but I just try not to park on hills now. The sacrifices for excellent car audio.... I run a 136W set with the Audiom 6w2 for mids. I like it a lot, but I have already gone through a couple of drivers due to too much power from the Mc amp. I've kinda settled on annual replacement or the 5 1/8th inch drivers in lieu of biting the bullet for the larger, more power handling 165W set.
Dusty-
I love the natural sound of a 3-way set-up, but that series isn't really plug-and-play if you want to get the most out of it. You may have to try multiple speaker placements, gains, etc. (IMHO) Don't let the installer guys convince you to put the tweeters in the A-pillars....
The amps I lookoed at were a PPI - PC4800, and the XTANT 604. Both excellen in my opinion, but the XTANT had a little more flexibility in the way of electronic circuitry (for example independent crossover select for each speaker channel) Those JLAudio amps are bullet-proof from what I've read (and I own the 500/1), so that might be a great selection too, and one that you can buy new right now. I'm not sure what the newest models are for the XTANT and PPI amps I auditioned.
Before we get too deep though, budget numbers could help. But most importantly, I think you should take 5-6 different CDs to a store and test out which speaker/amp combinations you're thinking about. That will give you much more personal information than we, or a brochure, ever could. Also, for many people, this becomes a bug and you add a little bit more each time. Be careful of "the bug", just like with Home Theater. Or maybe don't.
I'll stand down until I hear from Dusty.
Regards,
Karl