PIONEER!!!! for the price you will get the quality!... go check out sonicelectronics.com they have loads of indash that wont break the bank. Pioneer is the way to go for the price for sure if not go with kenwood.
Get a Z2, thats what i got. 7inch touchscreen. And it can do everything any radio can do. Nav, XM, DVD, Camera, game consoles, etc etc. And it has a built in 30gig hardrive so you can store all your songs on itso you never need to mess with any cd's or ipods or anything. The thing is badass.