Which DVD head unit to buy???

[skallen]

I am planning on buying an in-dash DVD player/screen for my 09 MZ3...I really want the double din HU instead of the flip-out (had the old Alpine IVA-D300..Loved it)... My question is : Which HU should I purchase? I am looking for something higher end with a 7" screen with NAV...I really like the new Pioneer and have been also looking at the Eclipse and the Alpine W505 (but then I have to buy the Blackbird to get NAV).. I was just wondering if anybody has any of these Head Units and what they think of them...Also some pics would be great just to see how it would look installed