I'm just about to do the same to my LCR.
BLADEUK, what screen you using? is it touchscreen, how much was it?
I was thinking of doing the double din thing and building it in but not too keen on it being low down.
Anyone else started the project? it would be good to here your views
I just went to see a mates one in his
ibiza, sterling job he did! using a 12v PSU from cartnatirx (or something) and has a liliput screen mounted in dash, and pc in the boot.
If i can get a cheap double din face for the leon i'll be up for installing the screen, if not its going to have to be the slide out type as above