What's my options?

[robsmith1]

Just got a 55 plate 225 Megane (which i love by the way).
It has a double din dash so will accomodate such a stereo if there's a good option.
Basically i'd like to uprate the head unit which will still work off the steering column controls.
Also considering something with a screen / tv / sat nav ect all built in?
What's the verdict on the best head unit/s either single or double din that will work off the normal controls?