>>11998097
you want a high resolution screen with shaders.
the cheaper options are the trimui brick and the upcoming magicx xu20 v32 with its 1024x768 screen. the 720p chinkhelds are not a bad option either, high res enough to do the job.
here's a pic of my brick running a modified tvout-tweaks to rein-in the blur a little and modified fake-crt-geom-potato to remove the curvature shit.