I've said many time but if you can't stretch to RNS fully specced, I'd go for a Zenec NC2010 (coming down used prices as a 2011D model is out).
Has integrated Parrot Bluetooth, works with Highline/MFSW, ipod charging/controlable through MFSW, has a nice slick menu and you can put in a freeview box too, as well as dual zone (kids can watch films in back, you can have radio/nav in front).
My new car has an RNS and have to admit I think I miss the Zenec.