Need Help finding A/V/NAV Model

Hi everyone,
I'm a new member hoping there are some experts out there that can help me find a good A/V/NAV unit for my '07 Taco. I am looking for an in-dash double din unit with a 6.5" or 7" screen, I want it to support all DVD and CD-R types, play mp3's and other media formats, support hands free bluetooth pairing for cell phones, and would prefer a unit with a hard drive that allows media storage. I have found a few models that have all that but the one thing I am having trouble with is finding one with a GPS/Nav system that supports on-road and off-road navigation. I can't seem to find an in-dash unit that has quality road maps for on-road driving and quality topo maps for off-roading. Has anyone found this perfect system?

 

http://www.tacomaworld.com/forum/audio-video/14210-pioneer-avic-700bt.html

http://www.tacomaworld.com/forum/2nd-gen-tacomas/14359-double-din-cd-players.html

http://www.tacomaworld.com/forum/2nd-gen-tacomas/14249-my-next-mod.html

And Crutchfield has a GREAT compare and contrast area for these... That is what I did - and I narrowed mine down to the Kenwood DNX5120

 

Thanks for the reply BullDog, I like the Kenwood model you mentioned but it doesn't mention anything about off-road navigation. Do you know if there are any topo maps available for off-roading?