I am going through the same search. I finally took the plunge yesterday and ordered the JVC KD-AVX77 from here. With promo code 'BAWLA10' I got it and shipping for $410... not a bad deal considering what others I've seen are going for. Why this one? My main concerns were compatibility with iPhone 3Gs, built in Bluetooth, and a touch screen.

I'll keep you updated on install and post pics with a review once I get it in.