Custom stereo idea, need thoughts/recommendations

[aggiehummer...er]

Folks,

We're thinking of making an H2 with a good bit of stereo stuff in it. I thought I'd come to you guys for your thoughts and recommendations as far as brands go and what experiences you've had.

Here's what I want to do, starting with a 2007 Black H2 with no nav (the * means I need a recommendation on a good solid brand, I don't have a ton of experience with aftermarket stereo equipment):
Aftermarket Head Unit w/nav*
2 Tweeters*
2 Front Door Speakers (as well as the size)*
2 Rear Door Speakers (ditto on the size)*
2 12" subs (I'm having two fiberglass enclosures made)*
Amp to power it all*
Clifford RSX 3.5 Security/Remote Start system
Savv 10.2" Headrest (yes, headrest) DVD players
KVH Tracvision A5

If there's anything I'm missing (besides visor screens and stuff like that, I have to keep all of this state of Texas legal), please let me know your thoughts and recommendations. Thanks guys!