I am setting up the appointment tonight for mine:
Kenwood DNX7100 all in one DVD, Nav (by Garmin), Sirius, Bluetooth, etc.
Kenwood KCA-BT100 bluetooth adapter.
already have a Sirius receiver, but that will be installed too.
Can-bus adapter for steering wheel controls in my Mega to work, and Infinity adapter so it all just plugs into the stock system. Installer has already said he got busted once (how, who knows) for making the deck play movies while driving, but he said "this website might have the info on it", and it literally is just grounding one wire.
The deck is expandable as well, and someday I'll put in headrest monitors...but, that's another ~$700 that I'm not spending right now.
I started my audio-life running Alpine stuff, and switched to Kenwood...I've always bought the eXcelon stuff till now, as the eXcelon version of the 7100 doesn't have built in Nav, and only has a better converter which I couldn't tell the difference in at the store. Reviews on the net about the system I've conjured up are all good, except the GUI interface on the deck...they say it's not inherantly intuitive and takes a bit to learn, but all the stuff works very well and the screen has a great picture...we'll see I guess.
all-in-all, looking at about $2000 installed...kinda high, as I can buy all the stuff on ebay for about $1500 NIB, but ebay doesn't have a reputation in the local town that they care about.